diff --git a/Makefile b/Makefile
index c03917b..27ba792 100644
--- a/Makefile
+++ b/Makefile
@@ -37,7 +37,7 @@ tracy_build:
 	meson compile -j 10 -C builddir
 
 test: build
-	./builddir/runtests -d yes "[systems-engine]"
+	./builddir/runtests -d yes
 
 run: build test
 ifeq '$(OS)' 'Windows_NT'
@@ -48,7 +48,7 @@ else
 endif
 
 debug: build
-	gdb --nx -x .gdbinit --ex run --args builddir/runtests "[systems-engine]"
+	gdb --nx -x .gdbinit --ex run --args builddir/runtests
 
 debug_run: build
 	gdb --nx -x .gdbinit --batch --ex run --ex bt --ex q --args builddir/zedcaster
@@ -60,7 +60,7 @@ clean:
 	meson compile --clean -C builddir
 
 debug_test: build
-	gdb --nx -x .gdbinit --ex run --ex bt --ex q --args builddir/runtests "[systems-engine]"
+	gdb --nx -x .gdbinit --ex run --ex bt --ex q --args builddir/runtests
 
 win_installer:
 	powershell 'start "C:\Program Files (x86)\solicus\InstallForge\bin\ifbuilderenvx86.exe" scripts\win_installer.ifp'
diff --git a/assets/animation.json b/assets/animation.json
index 9098a9f..3ce25a6 100644
--- a/assets/animation.json
+++ b/assets/animation.json
@@ -65,7 +65,7 @@
       "close": []
     }
  },
- "rat_with_sword": {
+ "spider_bot": {
     "sheet": {
       "frames": 1,
       "frame_width": 256,
@@ -98,14 +98,14 @@
       "close": []
     }
  },
-  "female_hand": {
+  "hands_sword_attack": {
     "sheet": {
       "frames": 3,
-      "frame_width": 900,
-      "frame_height": 600
+      "frame_width": 512,
+      "frame_height": 341
     },
     "sequences": {
-      "idle": {"frames": [0, 1, 2], "durations": [10, 10, 20] }
+      "idle": {"frames": [0, 1, 2], "durations": [25, 5, 20] }
     },
     "transforms": {
       "basic": {
@@ -115,7 +115,7 @@
         "max_y": 1.0,
         "flipped": false,
         "scaled": false,
-        "toggled": true,
+        "toggled": false,
         "looped": false,
         "relative": false,
         "easing": "none",
diff --git a/assets/config.json b/assets/config.json
index 00ecef8..f521e8b 100644
--- a/assets/config.json
+++ b/assets/config.json
@@ -1,62 +1,29 @@
 {
   "sounds": {
-    "Sword_Hit_1": "assets/sounds/Creature_Sounds-Sword_Hit_1.ogg",
-    "Evil_Eye_Sound_1": "assets/sounds/Creature_Sounds-Evil_Eye_Sound_1.ogg",
-    "Evil_Eye_Sound_2": "assets/sounds/Creature_Sounds-Evil_Eye_Sound_2.ogg",
-    "Giant_Voice_1": "assets/sounds/Creature_Sounds-Giant_Voice_1.ogg",
-    "Medium_Rat": "assets/sounds/Creature_Sounds-Medium_Rat.ogg",
-    "Ranger_1": "assets/sounds/Creature_Sounds-Ranger_1.ogg",
-    "Small_Rat": "assets/sounds/Creature_Sounds-Small_Rat.ogg",
-    "Spider_1": "assets/sounds/Creature_Sounds-Spider_1.ogg",
-    "Spider_2": "assets/sounds/Creature_Sounds-Spider_2.ogg",
-    "Sword_Hit_1": "assets/sounds/Creature_Sounds-Sword_Hit_1.ogg",
-    "Sword_Hit_2": "assets/sounds/Creature_Sounds-Sword_Hit_2.ogg",
-    "walk": "assets/sounds/Creature_Sounds-Walk.ogg",
-    "Creature_Death_1": "assets/sounds/Creature_Sounds-Creature_Death_1.ogg",
-    "Humanoid_Death_1": "assets/sounds/Creature_Sounds-Humanoid_Death_1.ogg",
-    "Marmot_Scream_1": "assets/sounds/Creature_Sounds-Marmot_Scream_1.ogg",
     "blank": "assets/sounds/blank.ogg",
     "pickup": "assets/sounds/pickup.ogg",
-    "ambient_1": "assets/sounds/ambient_1.ogg",
     "ui_click": "assets/sounds/ui_click.ogg",
     "ui_hover": "assets/sounds/ui_hover.ogg",
-    "punch_cartoony": "assets/sounds/punch_cartoony.ogg",
-    "electric_shock_01": "assets/sounds/electric_shock_01.ogg",
-    "fireball_01": "assets/sounds/fireball_01.ogg",
-    "hp_status_80": "assets/sounds/hp_status_80.ogg",
-    "hp_status_60": "assets/sounds/hp_status_60.ogg",
-    "hp_status_30": "assets/sounds/hp_status_30.ogg",
-    "hp_status_10": "assets/sounds/hp_status_10.ogg",
-    "hp_status_00": "assets/sounds/hp_status_00.ogg"
+    "walk": "assets/sounds/walk.ogg"
   },
   "sprites": {
-    "rat_with_sword":
-    {"path": "assets/sprites/rat_with_sword.png",
+    "spider_bot":
+    {"path": "assets/sprites/spider_bot.png",
       "frame_width": 256,
       "frame_height": 256
     },
-    "torch_crappy":
-    {"path": "assets/items/torch_crappy.png",
+    "repair_kit":
+    {"path": "assets/items/repair_kit.png",
       "frame_width": 256,
       "frame_height": 256
     },
-    "torch_horizontal_floor":
-    {"path": "assets/items/torch_horizontal_floor.png",
+    "sword_1":
+    {"path": "assets/items/sword_1_sprite.png",
       "frame_width": 256,
       "frame_height": 256
     },
-    "peasant_girl":
-    {"path": "assets/sprites/peasant_girl_2.png",
-      "frame_width": 256,
-      "frame_height": 256
-    },
-    "healing_potion_small":
-    {"path": "assets/items/healing_potion_small.png",
-      "frame_width": 256,
-      "frame_height": 256
-    },
-    "well_down":
-    {"path": "assets/sprites/well_down.png",
+    "ladder_down":
+    {"path": "assets/sprites/ladder_down.png",
       "frame_width": 256,
       "frame_height": 256
     },
@@ -75,13 +42,8 @@
       "frame_width": 256,
       "frame_height": 256
     },
-    "peasant_girl":
-    {"path": "assets/sprites/peasant_girl_2.png",
-      "frame_width": 256,
-      "frame_height": 256
-    },
-    "female_hand":
-    {"path": "assets/hands/female_hand.png",
+    "hands_sword_attack":
+    {"path": "assets/hands/hands_sword_attack.png",
       "frame_width": 900,
       "frame_height": 600
     }
@@ -109,9 +71,9 @@
     "border_px": 1,
     "text_size": 20,
     "label_size": 20,
-    "font_file_name": "assets/text.otf"
+    "font_file_name": "assets/text.ttf"
   },
   "player": {
-    "hands": "female_hand"
+    "hands": "hands_sword_attack"
   }
 }
diff --git a/assets/devices.json b/assets/devices.json
index 0f52e02..70abeb3 100644
--- a/assets/devices.json
+++ b/assets/devices.json
@@ -14,7 +14,7 @@
       {"_type": "Device",
         "config": {},
         "events": ["STAIRS_DOWN"]},
-      {"_type": "Sprite", "name": "well_down", "width": 256, "height": 256, "scale": 1.0}
+      {"_type": "Sprite", "name": "ladder_down", "width": 256, "height": 256, "scale": 1.0}
     ]
   },
   "DEAD_BODY_LOOTABLE": {
diff --git a/assets/doors/door_plain.png b/assets/doors/door_plain.png
new file mode 100644
index 0000000..bfca6c6
Binary files /dev/null and b/assets/doors/door_plain.png differ
diff --git a/assets/enemies.json b/assets/enemies.json
index 4018979..57f5a2e 100644
--- a/assets/enemies.json
+++ b/assets/enemies.json
@@ -6,7 +6,7 @@
         "foreground": "enemies/fg:player",
         "background": "color:transparent"
       },
-      {"_type": "Combat", "hp": 200, "max_hp": 200, "ap": 0, "max_ap": 12, "ap_delta": 6, "damage": 50, "dead": false},
+      {"_type": "Combat", "ap": 0, "max_ap": 12, "ap_delta": 6, "damage": 50, "dead": false},
       {"_type": "Motion", "dx": 0, "dy": 0, "random": false},
       {"_type": "Collision", "has": true},
       {"_type": "EnemyConfig", "ai_script": "Host::actions", "ai_start_name": "Host::initial_state", "ai_goal_name": "Host::final_state"},
@@ -14,19 +14,18 @@
       {"_type": "LightSource", "strength": 35, "radius": 2.0}
     ]
   },
-  "RAT_GIANT": {
+  "SPIDER_BOT": {
     "components": [
       {"_type": "Tile", "display": 2220,
         "foreground": "enemies/fg:rat_giant",
         "background": "color:transparent"
       },
-      {"_type": "Combat", "hp": 50, "max_hp": 50,  "ap": 0, "max_ap": 12, "ap_delta": 6,"damage": 2, "dead": false},
+      {"_type": "Combat", "ap": 0, "max_ap": 12, "ap_delta": 6,"damage": 2, "dead": false},
       {"_type": "Collision", "has": true},
       {"_type": "Motion", "dx": 0, "dy": 0, "random": false},
       {"_type": "EnemyConfig", "ai_script": "Enemy::actions", "ai_start_name": "Enemy::initial_state", "ai_goal_name": "Enemy::final_state"},
       {"_type": "Personality", "hearing_distance": 5, "tough": false},
-      {"_type": "Sprite", "name": "rat_with_sword", "scale": 1.0},
-      {"_type": "Sound", "attack": "Small_Rat", "death": "Creature_Death_1"}
+      {"_type": "Sprite", "name": "spider_bot", "scale": 1.0}
     ]
   }
 }
diff --git a/assets/hands/hands_sword_attack.png b/assets/hands/hands_sword_attack.png
new file mode 100644
index 0000000..81dbbb3
Binary files /dev/null and b/assets/hands/hands_sword_attack.png differ
diff --git a/assets/icons.json b/assets/icons.json
index 904cd97..418cc89 100644
--- a/assets/icons.json
+++ b/assets/icons.json
@@ -1,12 +1,12 @@
 {
-  "healing_potion_small":
-  {"path": "assets/icons/healing_potion_small.png",
+  "repair_kit":
+  {"path": "assets/icons/repair_kit.png",
     "frame_width": 96,
     "frame_height": 96
   },
-  "torch_horizontal_floor":
-  {"path": "assets/icons/torch_horizontal_floor.png",
-    "frame_width": 96,
-    "frame_height": 96
+  "sword_1":
+  {"path": "assets/icons/sword_1_icon.png",
+    "frame_width": 300,
+    "frame_height": 100
   }
 }
diff --git a/assets/icons/repair_kit.png b/assets/icons/repair_kit.png
new file mode 100644
index 0000000..634e48b
Binary files /dev/null and b/assets/icons/repair_kit.png differ
diff --git a/assets/icons/sword_1_icon.png b/assets/icons/sword_1_icon.png
new file mode 100644
index 0000000..6d38330
Binary files /dev/null and b/assets/icons/sword_1_icon.png differ
diff --git a/assets/items.json b/assets/items.json
index 5c25db3..61d824d 100644
--- a/assets/items.json
+++ b/assets/items.json
@@ -1,23 +1,8 @@
 {
-  "TORCH_BAD": {
-    "id": "TORCH_BAD",
-    "name": "Crappy Torch",
-    "description": "A torch that barely lights the way.  You wonder if it'd be better to not see the person who murders you.",
-    "inventory_count": 1,
-    "components": [
-      {"_type": "LightSource", "strength": 50, "radius": 2.5},
-      {"_type": "Tile", "display": 3848,
-        "foreground": "items/fg:flame",
-        "background": "color:transparent"
-      },
-      {"_type": "Sprite", "name": "torch_horizontal_floor", "width": 256, "height": 256, "scale": 1.0},
-      {"_type": "Sound", "attack": "pickup", "death": "blank"}
-    ]
-  },
-  "POTION_HEALING_SMALL": {
-    "id": "POTION_HEALING_SMALL",
-    "name": "Small Healing Potion",
-    "description": "A small healing potion.",
+  "REPAIR_KIT": {
+    "id": "REPAIR_KIT",
+    "name": "Robot Repair Kit",
+    "description": "A healing item for robots.",
     "inventory_count": 1,
     "components": [
       {"_type": "Tile", "display": 1003,
@@ -25,7 +10,21 @@
         "background": "color:transparent"
       },
       {"_type": "Curative", "hp": 20},
-      {"_type": "Sprite", "name": "healing_potion_small", "width": 256, "height": 256, "scale": 1.0},
+      {"_type": "Sprite", "name": "repair_kit", "width": 256, "height": 256, "scale": 1.0},
+      {"_type": "Sound", "attack": "pickup", "death": "blank"}
+    ]
+  },
+  "SWORD_1": {
+    "id": "SWORD_1",
+    "name": "Robot Repair Kit",
+    "description": "A healing item for robots.",
+    "inventory_count": 1,
+    "components": [
+      {"_type": "Tile", "display": 1004,
+        "foreground": "items/fg:potion",
+        "background": "color:transparent"
+      },
+      {"_type": "Sprite", "name": "sword_1", "width": 300, "height": 100, "scale": 1.0},
       {"_type": "Sound", "attack": "pickup", "death": "blank"}
     ]
   }
diff --git a/assets/items/repair_kit.png b/assets/items/repair_kit.png
new file mode 100644
index 0000000..a540c09
Binary files /dev/null and b/assets/items/repair_kit.png differ
diff --git a/assets/items/sword_1_sprite.png b/assets/items/sword_1_sprite.png
new file mode 100644
index 0000000..2b84057
Binary files /dev/null and b/assets/items/sword_1_sprite.png differ
diff --git a/assets/items/torch_horizontal_floor.png b/assets/items/torch_horizontal_floor.png
new file mode 100644
index 0000000..2d8c7d7
Binary files /dev/null and b/assets/items/torch_horizontal_floor.png differ
diff --git a/assets/map_tiles.png b/assets/map_tiles.png
new file mode 100644
index 0000000..67c5ae3
Binary files /dev/null and b/assets/map_tiles.png differ
diff --git a/assets/palette.json b/assets/palette.json
index e3c68e1..856bf04 100644
--- a/assets/palette.json
+++ b/assets/palette.json
@@ -5,17 +5,17 @@
   },
   "gui/theme": {
     "black": [0, 0, 0, 255],
-    "dark_dark": [10, 10, 10, 255],
-    "dark_mid": [30, 30, 30, 255],
-    "dark_light": [60, 60, 60, 255],
-    "mid": [100, 100, 100, 255],
-    "light_dark": [150, 150, 150, 255],
-    "light_mid": [200, 200, 200, 255],
-    "light_light": [230, 230, 230, 255],
+    "dark_dark": [22, 10, 7, 255],
+    "dark_mid": [53, 25, 18, 255],
+    "dark_light": [91, 42, 31, 255],
+    "mid": [142, 65, 48, 255],
+    "light_dark": [193, 89, 65, 255],
+    "light_mid": [255, 117, 86, 255],
+    "light_light": [255, 194, 181, 255],
     "white": [255, 255, 255, 255],
-    "fill_color": "gui/theme:dark_mid",
-    "text_color": "gui/theme:light_light",
-    "bg_color": "gui/theme:mid",
+    "fill_color": [28, 29, 33, 255],
+    "text_color": [209, 209, 209, 255],
+    "bg_color":  "gui/theme:dark_light",
     "border_color": "gui/theme:dark_dark",
     "bg_color_dark": "gui/theme:black"
   },
diff --git a/assets/sounds/blank.ogg b/assets/sounds/blank.ogg
new file mode 100644
index 0000000..3322d4b
Binary files /dev/null and b/assets/sounds/blank.ogg differ
diff --git a/assets/sounds/pickup.ogg b/assets/sounds/pickup.ogg
new file mode 100644
index 0000000..de7e095
Binary files /dev/null and b/assets/sounds/pickup.ogg differ
diff --git a/assets/sounds/ui_click.ogg b/assets/sounds/ui_click.ogg
new file mode 100644
index 0000000..7ff2e8c
Binary files /dev/null and b/assets/sounds/ui_click.ogg differ
diff --git a/assets/sounds/ui_hover.ogg b/assets/sounds/ui_hover.ogg
new file mode 100644
index 0000000..be6e679
Binary files /dev/null and b/assets/sounds/ui_hover.ogg differ
diff --git a/assets/sounds/walk.ogg b/assets/sounds/walk.ogg
new file mode 100644
index 0000000..3d288ad
Binary files /dev/null and b/assets/sounds/walk.ogg differ
diff --git a/assets/sprites/dead_body.png b/assets/sprites/dead_body.png
new file mode 100644
index 0000000..cb6a592
Binary files /dev/null and b/assets/sprites/dead_body.png differ
diff --git a/assets/sprites/dead_body_lootable.png b/assets/sprites/dead_body_lootable.png
new file mode 100644
index 0000000..cb6a592
Binary files /dev/null and b/assets/sprites/dead_body_lootable.png differ
diff --git a/assets/sprites/ladder_down.png b/assets/sprites/ladder_down.png
new file mode 100644
index 0000000..d80862b
Binary files /dev/null and b/assets/sprites/ladder_down.png differ
diff --git a/assets/sprites/rat_with_sword.png b/assets/sprites/rat_with_sword.png
new file mode 100644
index 0000000..0d5763b
Binary files /dev/null and b/assets/sprites/rat_with_sword.png differ
diff --git a/assets/sprites/spider_bot.png b/assets/sprites/spider_bot.png
new file mode 100644
index 0000000..4b912a4
Binary files /dev/null and b/assets/sprites/spider_bot.png differ
diff --git a/assets/text.ttf b/assets/text.ttf
new file mode 100644
index 0000000..350d33b
Binary files /dev/null and b/assets/text.ttf differ
diff --git a/assets/textures/ceiling_black.png b/assets/textures/ceiling_black.png
new file mode 100644
index 0000000..b17688f
Binary files /dev/null and b/assets/textures/ceiling_black.png differ
diff --git a/assets/textures/floor_gray_stone.png b/assets/textures/floor_gray_stone.png
new file mode 100644
index 0000000..d03a1a8
Binary files /dev/null and b/assets/textures/floor_gray_stone.png differ
diff --git a/assets/textures/wall_plain.png b/assets/textures/wall_plain.png
new file mode 100644
index 0000000..a7ad29d
Binary files /dev/null and b/assets/textures/wall_plain.png differ
diff --git a/src/combat/combat.cpp b/src/combat/combat.cpp
index 042895b..23f3d7a 100644
--- a/src/combat/combat.cpp
+++ b/src/combat/combat.cpp
@@ -8,9 +8,30 @@ namespace components {
 
     if(attack) {
       my_dmg = Random::uniform<int>(1, damage);
-      target.hp -= my_dmg;
+      target.hit_limb(my_dmg);
     }
 
     return my_dmg;
   }
+
+  void Combat::hit_limb(int my_dmg) {
+    body_parts["head"] -= my_dmg;
+  }
+
+  bool Combat::is_dead() {
+    return body_parts["head"] < 0;
+  }
+
+  bool Combat::almost_dead() {
+    return body_parts["head"] < 20;
+  }
+
+  bool Combat::can_heal() {
+    return body_parts["head"] < 50;
+  }
+
+  void Combat::apply_healing(Curative& cure) {
+    int new_hp = body_parts["head"] + cure.hp;
+    body_parts["head"] = std::min(new_hp, 50);
+  }
 }
diff --git a/src/game/components.hpp b/src/game/components.hpp
index de49c35..9f31969 100644
--- a/src/game/components.hpp
+++ b/src/game/components.hpp
@@ -83,10 +83,6 @@ namespace components {
     std::string ai_goal_name;
   };
 
-  struct Curative {
-    int hp = 10;
-  };
-
   struct Sprite {
     string name;
     float scale;
@@ -106,12 +102,17 @@ namespace components {
     std::vector<std::array<std::string, 4>> beats;
   };
 
+  struct Curative {
+    int hp = 10;
+  };
+
   struct Combat {
-    int hp;
-    int max_hp;
     int ap_delta;
     int max_ap;
     int damage;
+    std::unordered_map<std::string, int> body_parts{
+      {"head", 50},
+    };
 
     // everyone starts at 0 but ap_delta is added each round
     int ap = 0;
@@ -120,6 +121,11 @@ namespace components {
     bool dead = false;
 
     int attack(Combat &target);
+    void hit_limb(int my_dmg);
+    bool is_dead();
+    bool almost_dead();
+    bool can_heal();
+    void apply_healing(Curative& cure);
   };
 
   struct LightSource {
@@ -156,7 +162,7 @@ namespace components {
   ENROLL_COMPONENT(EnemyConfig, ai_script, ai_start_name, ai_goal_name);
   ENROLL_COMPONENT(Personality, hearing_distance, tough);
   ENROLL_COMPONENT(Motion, dx, dy, random);
-  ENROLL_COMPONENT(Combat, hp, max_hp, ap_delta, max_ap, damage, dead);
+  ENROLL_COMPONENT(Combat, ap_delta, max_ap, damage, dead);
   ENROLL_COMPONENT(Device, config, events);
   ENROLL_COMPONENT(Storyboard, image, audio, layout, beats);
   ENROLL_COMPONENT(Sound, attack, death);
diff --git a/src/game/registry.hpp b/src/game/registry.hpp
new file mode 100644
index 0000000..cf5b8ee
--- /dev/null
+++ b/src/game/registry.hpp
@@ -0,0 +1,82 @@
+#pragma once
+
+#include <functional>
+#include "game/components.hpp"
+
+namespace System {
+  using MovingFunc = std::function<void(components::Position& move_to)>;
+  using CombatFunc = std::function<void(int attack_id)>;
+  using RenderFunc = std::function<void()>;
+  using UpdateFunc = std::function<void()>;
+  using UseItemFunc = std::function<void(const std::string& slot_name)>;
+  using PickupFunc = std::function<void()>;
+
+  struct Registry {
+    std::vector<MovingFunc> $moving;
+    std::vector<CombatFunc> $combat;
+    std::vector<RenderFunc> $render;
+    std::vector<UpdateFunc> $update;
+    std::vector<UseItemFunc> $use_item;
+    std::vector<PickupFunc> $pickup;
+
+    void addMoving(MovingFunc action) {
+      $moving.emplace_back(action);
+    }
+
+    void addCombat(CombatFunc action) {
+      $combat.emplace_back(action);
+    }
+
+    void addRender(RenderFunc action) {
+      $render.emplace_back(action);
+    }
+
+    void addUpdate(UpdateFunc action) {
+      $update.emplace_back(action);
+    }
+
+    void addUseItem(UseItemFunc action) {
+      $use_item.emplace_back(action);
+    }
+
+    void addPickup(PickupFunc action) {
+      $pickup.emplace_back(action);
+    }
+
+    void runMoving(components::Position move_to) {
+      for(auto func : $moving) {
+        func(move_to);
+      }
+    }
+
+    void runCombat(int attack_id) {
+      for(auto func : $combat) {
+        func(attack_id);
+      }
+    }
+
+    void runRender() {
+      for(auto func : $render) {
+        func();
+      }
+    }
+
+    void runUpdate() {
+      for(auto func : $update) {
+        func();
+      }
+    }
+
+    void runUseItem(const std::string& slot_name) {
+      for(auto func : $use_item) {
+        func(slot_name);
+      }
+    }
+
+    void runPickup() {
+      for(auto func : $pickup) {
+        func();
+      }
+    }
+  };
+}
diff --git a/src/game/systems.cpp b/src/game/systems.cpp
index d01fb93..75b9e12 100644
--- a/src/game/systems.cpp
+++ b/src/game/systems.cpp
@@ -167,16 +167,15 @@ void System::distribute_loot(Position target_pos) {
   auto loot_entity = world.entity();
 
   if(inventory_count > 0) {
-    auto& entity_data = config.devices["DEAD_BODY_LOOTABLE"];
-    components::configure_entity(world, loot_entity, entity_data["components"]);
-    // BUG: inventory_count here isn't really used to remove it
-    world.set<InventoryItem>(loot_entity, {inventory_count, entity_data});
-  } else {
-    // this creates a dead body on the ground
-    auto& entity_data = config.devices["DEAD_BODY"];
-    components::configure_entity(world, loot_entity, entity_data["components"]);
+    dbc::log("!!!!!!!!!!!!!!!! ============= LOOTING BODIES NOT READY");
   }
 
+  // NOTE: refer to the code in raycaster for this
+
+  // this creates a dead body on the ground
+  auto& entity_data = config.devices["DEAD_BODY"];
+  components::configure_entity(world, loot_entity, entity_data["components"]);
+
   set_position(world, *level.collision, loot_entity, target_pos);
   level.world->send<game::Event>(game::Event::ENTITY_SPAWN, loot_entity, {});
 }
@@ -189,7 +188,7 @@ void System::death() {
 
   world.query<Combat>([&](auto ent, auto &combat) {
     // bring out yer dead
-    if(combat.hp <= 0 && !combat.dead) {
+    if(combat.is_dead() && !combat.dead) {
       combat.dead = true;
       if(ent != player.entity) {
         // we won't change out the player's components later
@@ -197,7 +196,7 @@ void System::death() {
       }
       // we need to send this event for everything that dies
       world.send<game::Event>(game::Event::DEATH, ent, {});
-    } else if(float(combat.hp) / float(combat.max_hp) < 0.5f) {
+    } else if(combat.almost_dead()) {
       // if enemies are below 50% health they are marked with bad health
       if(world.has<ai::EntityAI>(ent)) {
         auto& enemy_ai = world.get<ai::EntityAI>(ent);
@@ -474,34 +473,23 @@ bool System::inventory_occupied(Entity container_id, const std::string& name) {
   return inventory.has(name);
 }
 
-bool System::use_item(const string& slot_name) {
+void System::use_item(const string& slot_name) {
   auto& level = GameDB::current_level();
   auto& world = *level.world;
   auto& inventory = world.get<inventory::Model>(level.player);
   auto& player_combat = world.get<Combat>(level.player);
 
-  if(player_combat.hp >= player_combat.max_hp) return false;
-  if(!inventory.has(slot_name)) return false;
+  if(!player_combat.can_heal()) return;
+  if(!inventory.has(slot_name)) return;
 
   auto what = inventory.get(slot_name);
 
   if(auto curative = world.get_if<Curative>(what)) {
     inventory.remove(what);
-
-    player_combat.hp += curative->hp;
-
-    if(player_combat.hp > player_combat.max_hp) {
-      player_combat.hp = player_combat.max_hp;
-    }
-
-    dbc::log($F("player health now {}",
-          player_combat.hp));
-
+    player_combat.apply_healing(*curative);
     world.remove<Curative>(what);
-    return true;
   } else {
     dbc::log($F("no usable item at {}", what));
-    return false;
   }
 }
 
@@ -541,3 +529,19 @@ void System::clear_attack() {
 
 void System::spawn_attack(World& world, int attack_id, DinkyECS::Entity enemy) {
 }
+
+
+void System::init(Registry& reg) {
+  reg.addRender(System::clear_attack);
+  reg.addUseItem(System::use_item);
+  reg.addMoving(System::move_player);
+  reg.addCombat(System::combat);
+  reg.addPickup(System::pickup);
+  reg.addUpdate(System::generate_paths);
+  reg.addUpdate(System::enemy_ai_initialize);
+  reg.addUpdate(System::enemy_pathing);
+  reg.addUpdate(System::motion);
+  reg.addUpdate(System::collision);
+  reg.addUpdate(System::lighting);
+  reg.addUpdate(System::death);
+}
diff --git a/src/game/systems.hpp b/src/game/systems.hpp
index b1edd4e..38f29e0 100644
--- a/src/game/systems.hpp
+++ b/src/game/systems.hpp
@@ -5,8 +5,10 @@
 #include "algos/spatialmap.hpp"
 #include "game/level.hpp"
 #include "events.hpp"
+#include "game/registry.hpp"
 
 namespace System {
+
   using namespace components;
   using namespace DinkyECS;
   using std::string, matrix::Matrix;
@@ -32,15 +34,15 @@ namespace System {
 
   void pickup();
 
+  // BUG: these might need to go somewhere else....
   bool place_in_container(Entity cont_id, const string& name, Entity world_entity);
-
   void remove_from_container(Entity cont_id, const std::string& name);
   void remove_from_world(Entity entity);
   void inventory_swap(Entity container_id, const std::string& a_name, const std::string &b_name);
   bool inventory_occupied(Entity container_id, const std::string& name);
 
   void set_position(DinkyECS::World& world, SpatialMap& collision, Entity entity, Position pos);
-  bool use_item(const std::string& slot_name);
+  void use_item(const std::string& slot_name);
 
   game::Event shortest_rotate(Point player_at, Point aiming_at, Point turning_to);
 
@@ -67,4 +69,6 @@ namespace System {
 
   void clear_attack();
   void spawn_attack(World& world, int attack_id, DinkyECS::Entity enemy);
+
+  void init(Registry& reg);
 }
diff --git a/src/game/worldbuilder.cpp b/src/game/worldbuilder.cpp
index cac4c5c..b596ff2 100644
--- a/src/game/worldbuilder.cpp
+++ b/src/game/worldbuilder.cpp
@@ -199,15 +199,14 @@ void WorldBuilder::place_stairs(DinkyECS::World& world, GameConfig& config) {
 
 void WorldBuilder::configure_starting_items(DinkyECS::World &world) {
   auto& player = world.get_the<Player>();
-
-  auto torch_id = System::spawn_item(world, "TORCH_BAD");
-
   auto &inventory = world.get<inventory::Model>(player.entity);
-  inventory.add("hand_r", torch_id);
-  world.make_constant(torch_id);
 
-  auto healing = System::spawn_item(world, "POTION_HEALING_SMALL");
-  inventory.add("pocket_l", healing);
+  auto healing = System::spawn_item(world, "REPAIR_KIT");
+  inventory.add("inv0", healing);
+
+  auto sword = System::spawn_item(world, "SWORD_1");
+  inventory.add("hand_main", sword);
+
   world.make_constant(healing);
 }
 
diff --git a/src/graphics/raycaster.cpp b/src/graphics/raycaster.cpp
index 0956a09..ca800f6 100644
--- a/src/graphics/raycaster.cpp
+++ b/src/graphics/raycaster.cpp
@@ -121,7 +121,7 @@ inline void set_scale_position(sf::Sprite& sprite, sf::Vector2f& position, sf::V
 }
 
 
-void Raycaster::sprite_casting() {
+void Raycaster::sprite_casting(sf::RenderTarget& target) {
   auto& lights = $level.lights->lighting();
   auto world = $level.world;
   $level.collision->distance_sorted($sprite_order, {(size_t)$pos_x, (size_t)$pos_y}, RENDER_DISTANCE);
@@ -212,7 +212,6 @@ void Raycaster::sprite_casting() {
       sf::Vector2f scale{sprite_scale_w, sprite_scale_h};
       sf::Vector2f position{x + origin.x * scale.x, y + origin.y * scale.y};
       sf::IntRect in_texture{ {tex_x, tex_y}, {tex_render_width, texture_height}};
-
       shared_ptr<sf::Shader> effect = System::sprite_effect(rec.entity);
 
       if(effect) {
@@ -231,7 +230,7 @@ void Raycaster::sprite_casting() {
         set_scale_position(*sf_sprite, position, scale, in_texture, origin);
       }
 
-      $sprites_to_render.emplace_back(sf_sprite, effect);
+      target.draw(*sf_sprite, effect.get());
     }
   }
 }
@@ -438,16 +437,12 @@ void Raycaster::update() {
   draw_ceiling_floor();
   cast_rays();
   draw_pixel_buffer();
-  sprite_casting();
 }
 
 // BUG: if target is a rendertarget then I can say it has to be the viewport only, then I can get rid of $screen_pos_x/y
 void Raycaster::render(sf::RenderTarget& target) {
   target.draw($view_sprite);
-
-  for(auto [sprite, effect] : $sprites_to_render) {
-    target.draw(*sprite, effect.get());
-  }
+  sprite_casting(target);
 }
 
 void Raycaster::update_sprite(DinkyECS::Entity ent, components::Sprite& sprite) {
diff --git a/src/graphics/raycaster.hpp b/src/graphics/raycaster.hpp
index 922eda9..d1038cf 100644
--- a/src/graphics/raycaster.hpp
+++ b/src/graphics/raycaster.hpp
@@ -21,7 +21,7 @@ struct CameraLOL {
   double target_plane_y = 0.0;
 };
 
-using SpriteRender = std::pair<std::shared_ptr<sf::Sprite>, std::shared_ptr<sf::Shader>>;
+using SpriteRender = std::pair<sf::Sprite, std::shared_ptr<sf::Shader>>;
 
 struct Raycaster {
   sf::Texture $view_texture;
@@ -64,7 +64,7 @@ struct Raycaster {
   void cast_rays();
   void draw_ceiling_floor();
   void draw_pixel_buffer();
-  void sprite_casting();
+  void sprite_casting(sf::RenderTarget& target);
   void update();
   void render(sf::RenderTarget& target);
 
diff --git a/src/gui/body_ui.cpp b/src/gui/body_ui.cpp
new file mode 100644
index 0000000..2fa4f5b
--- /dev/null
+++ b/src/gui/body_ui.cpp
@@ -0,0 +1,61 @@
+#include "gui/body_ui.hpp"
+#include "game/components.hpp"
+#include <guecs/ui.hpp>
+#include "algos/rand.hpp"
+#include <fmt/xchar.h>
+#include "gui/guecstra.hpp"
+#include "game/systems.hpp"
+#include "game/inventory.hpp"
+#include "game/level.hpp"
+
+namespace gui {
+  using namespace guecs;
+  using std::any, std::any_cast, std::string, std::make_any;
+
+  void BodyUI::init(size_t x, size_t y, size_t width, size_t height) {
+    $gui.position(x, y, width, height);
+    $gui.layout(
+        "[head]"
+        "[chest]"
+        "[right_arm]"
+        "[left_arm]"
+        "[stomach]"
+        "[left_leg]"
+        "[right_leg]");
+
+    $gui.set<Background>($gui.MAIN, {$gui.$parser, });
+
+    for(auto& [name, cell] : $gui.cells()) {
+      auto gui_id = $gui.entity(name);
+
+      $gui.set<Text>(gui_id, {guecs::to_wstring(name)});
+      $gui.set<Meter>(gui_id, {1.0f, THEME.DARK_MID, {}});
+    }
+
+    $gui.init();
+    update();
+  }
+
+  bool BodyUI::mouse(float x, float y, guecs::Modifiers mods) {
+    return $gui.mouse(x, y, mods);
+  }
+
+  void BodyUI::update() {
+    auto world = GameDB::current_world();
+    auto& player = world->get_the<components::Player>();
+    auto& player_combat = world->get<components::Combat>(player.entity);
+
+    for(auto& [key, value] : player_combat.body_parts) {
+      auto gui_id = $gui.entity(key);
+
+      if(auto meter = $gui.get_if<Meter>(gui_id)) {
+        meter->percent = float(value) / 50.0;
+      }
+    }
+  }
+
+  void BodyUI::render(sf::RenderWindow &window) {
+    $gui.render(window);
+    // $gui.debug_layout(window);
+  }
+}
diff --git a/src/gui/body_ui.hpp b/src/gui/body_ui.hpp
new file mode 100644
index 0000000..99b048e
--- /dev/null
+++ b/src/gui/body_ui.hpp
@@ -0,0 +1,18 @@
+#pragma once
+#include "constants.hpp"
+#include <deque>
+#include "graphics/textures.hpp"
+#include <guecs/ui.hpp>
+#include "gui/guecstra.hpp"
+
+namespace gui {
+  class BodyUI {
+    public:
+      guecs::UI $gui{};
+
+      void init(size_t x, size_t y, size_t width, size_t height);
+      void render(sf::RenderWindow &window);
+      void update();
+      bool mouse(float x, float y, guecs::Modifiers mods);
+  };
+}
diff --git a/src/gui/debug_ui.cpp b/src/gui/debug_ui.cpp
index f703a5c..c4f9fcc 100644
--- a/src/gui/debug_ui.cpp
+++ b/src/gui/debug_ui.cpp
@@ -19,7 +19,7 @@ namespace gui {
         "[spawn1|spawn2|spawn3]"
         "[spawn4|spawn5|spawn6]");
 
-    add_spawn_button("RAT_GIANT", "rat_with_sword", "spawn4");
+    // add_spawn_button("RAT_GIANT", "rat_with_sword", "spawn4");
 
     $gui.init();
   }
@@ -48,7 +48,6 @@ namespace gui {
       auto map = level.map;
 
       std::wstring stats = $F(L"STATS\n"
-          L"HP: {}\n"
           L"mean:{:>8.5}\n"
           L"sdev: {:>8.5}\n"
           L"min: {:>8.5}\n"
@@ -58,7 +57,7 @@ namespace gui {
           L"VSync? {}\n"
           L"FR Limit: {}\n"
           L"Debug? {}\n\n",
-          player_combat.hp, $stats.mean(), $stats.stddev(), $stats.min,
+          $stats.mean(), $stats.stddev(), $stats.min,
           $stats.max, $stats.n, level.index, map->width(), map->height(),
           VSYNC, FRAME_LIMIT, DEBUG_BUILD);
 
@@ -74,9 +73,6 @@ namespace gui {
     if(active) {
       auto& level = GameDB::current_level();
       // it's on now, enable things
-      auto player = level.world->get_the<components::Player>();
-      auto& player_combat = level.world->get<components::Combat>(player.entity);
-      player_combat.hp = player_combat.max_hp;
       $gui.show_text("debug_text", L"STATS");
     } else {
       // it's off now, close it
diff --git a/src/gui/fsm.cpp b/src/gui/fsm.cpp
index 8a7686a..9062526 100644
--- a/src/gui/fsm.cpp
+++ b/src/gui/fsm.cpp
@@ -58,7 +58,7 @@ namespace gui {
   void FSM::MOVING(Event ) {
     // this should be an optional that returns a point
     if(auto move_to = $main_ui.play_move()) {
-      System::move_player(*move_to);
+      $systems.runMoving(*move_to);
       run_systems();
       $main_ui.dirty();
       state(State::IDLE);
@@ -70,7 +70,7 @@ namespace gui {
     switch(ev) {
       case TICK: {
         dbc::log("!!!!!! FIX System::combat(0) doesn't use any weapons, only first");
-        System::combat(0);
+        $systems.runCombat(0);
         run_systems();
         state(State::IN_COMBAT);
        } break;
@@ -79,7 +79,7 @@ namespace gui {
         break;
       case ATTACK: {
         int attack_id = std::any_cast<int>(data);
-        System::combat(attack_id);
+        $systems.runCombat(attack_id);
         run_systems();
        } break;
       default:
@@ -174,10 +174,8 @@ namespace gui {
       case USE_ITEM: {
         auto gui_id = std::any_cast<guecs::Entity>(data);
         auto& slot_name = $status_ui.$gui.name_for(gui_id);
-
-        if(System::use_item(slot_name)) {
-          $status_ui.update();
-        }
+        $systems.runUseItem(slot_name);
+        $status_ui.update();
        } break;
       case MOUSE_CLICK:
         mouse_action(guecs::NO_MODS);
@@ -186,7 +184,7 @@ namespace gui {
           mouse_action({1 << guecs::ModBit::hover});
        } break;
       case AIM_CLICK:
-        System::pickup();
+        $systems.runPickup();
         break;
       default:
         break; // ignore everything else
@@ -312,9 +310,6 @@ namespace gui {
             $debug_ui.debug();
             shaders::reload();
             break;
-          case KEY::O:
-            autowalking = true;
-            break;
           case KEY::L:
             // This will go away as soon as containers work
             $loot_ui.set_target($loot_ui.$temp_loot);
@@ -360,10 +355,8 @@ namespace gui {
   }
 
   void FSM::render() {
-    $window.clear();
-
     // this clears any attack animations, like fire
-    System::clear_attack();
+    $systems.runRender();
     // BUG: this is the render for this class, and where I add an update
     draw_gui();
 
@@ -371,13 +364,7 @@ namespace gui {
   }
 
   void FSM::run_systems() {
-    System::generate_paths();
-    System::enemy_ai_initialize();
-    System::enemy_pathing();
-    System::motion();
-    System::collision();
-    System::lighting();
-    System::death();
+    $systems.runUpdate();
   }
 
   bool FSM::active() {
diff --git a/src/gui/fsm.hpp b/src/gui/fsm.hpp
index 0610626..36aed03 100644
--- a/src/gui/fsm.hpp
+++ b/src/gui/fsm.hpp
@@ -1,6 +1,7 @@
 #pragma once
 
 #include "constants.hpp"
+#include "game/registry.hpp"
 #include "algos/simplefsm.hpp"
 #include "gui/debug_ui.hpp"
 #include "gui/main_ui.hpp"
@@ -35,12 +36,11 @@ namespace gui {
       LootUI $loot_ui;
       gui::routing::Router $router;
       DNDLoot $dnd_loot;
+      System::Registry $systems;
 
       FSM();
 
       void event(game::Event ev, std::any data={});
-      void autowalk();
-      void start_autowalk(double rot_speed);
 
       void START(game::Event ev);
       void MOVING(game::Event ev);
diff --git a/src/gui/loot_ui.cpp b/src/gui/loot_ui.cpp
index c76049a..07c55b4 100644
--- a/src/gui/loot_ui.cpp
+++ b/src/gui/loot_ui.cpp
@@ -78,6 +78,7 @@ namespace gui {
         dbc::check(world->has<components::Sprite>(item),
             "item in inventory UI doesn't exist in world. New level?");
         auto& sprite = world->get<components::Sprite>(item);
+        fmt::println("!!!!!!!!!!! trying to load {}", sprite.name);
         $gui.set_init<guecs::Icon>(id, {sprite.name});
 
         guecs::GrabSource grabber{
diff --git a/src/gui/main_ui.cpp b/src/gui/main_ui.cpp
index 1d5cd2b..559df5e 100644
--- a/src/gui/main_ui.cpp
+++ b/src/gui/main_ui.cpp
@@ -17,9 +17,11 @@ namespace gui {
     $window.setFramerateLimit(FRAME_LIMIT);
 
     auto config = settings::get("config");
-
     $hand = textures::get_sprite(config["player"]["hands"]);
     $hand_anim = animation::load("assets/animation.json", config["player"]["hands"]);
+    int width = $hand_anim.sheet.frame_width;
+    int height = $hand_anim.sheet.frame_height;
+    $hand.sprite->setPosition({float(RAY_VIEW_X + (RAY_VIEW_WIDTH - width) / 2), float(RAY_VIEW_HEIGHT - height)});
   }
 
   void MainUI::dirty() {
@@ -148,7 +150,6 @@ namespace gui {
     if($hand_anim.playing) {
       $hand_anim.update();
       $hand_anim.apply(*$hand.sprite);
-      $hand.sprite->setPosition({RAY_VIEW_X, RAY_VIEW_Y});
       $window.draw(*$hand.sprite);
     }
   }
diff --git a/src/gui/overlay_ui.cpp b/src/gui/overlay_ui.cpp
index 8d797b0..6f16f71 100644
--- a/src/gui/overlay_ui.cpp
+++ b/src/gui/overlay_ui.cpp
@@ -18,12 +18,13 @@ namespace gui {
     $gui.init();
   }
 
-  inline void make_clickable_area(guecs::UI &gui, const std::string &name) {
+  inline void make_clickable_area(guecs::UI &gui, const std::string name) {
     auto area = gui.entity(name);
 
     gui.set<Clickable>(area, {
-      [&](auto) {
+      [=](auto) {
         auto world = GameDB::current_world();
+        fmt::println("CLICK {}", name);
         world->send<game::Event>(game::Event::AIM_CLICK, area, {});
       }
     });
diff --git a/src/gui/status_ui.cpp b/src/gui/status_ui.cpp
index 3dbdeb5..87b6b39 100644
--- a/src/gui/status_ui.cpp
+++ b/src/gui/status_ui.cpp
@@ -16,10 +16,14 @@ namespace gui {
   {
     $gui.position(x, y, width, height);
     $gui.layout(
-        "[=slot1]"
-        "[=slot2]"
-        "[=hand_r]"
-        "[=pocket_l]");
+        "[*%(100, 300)body_ui]"
+        "[_]"
+        "[_]"
+        "[=inv0|=inv1|=inv2]"
+        "[=inv3|=inv4|=inv5]"
+        "[=inv6|=inv7|=inv8]"
+        "[=hand_main]"
+        "[=hand_off]");
   }
 
   void StatusUI::init() {
@@ -28,17 +32,22 @@ namespace gui {
     for(auto& [name, cell] : $gui.cells()) {
       auto gui_id = $gui.entity(name);
 
-      $gui.set<Rectangle>(gui_id, {});
-
       $gui.set<Text>(gui_id, {guecs::to_wstring(name)});
-      $gui.set<Clickable>(gui_id, {
-          guecs::make_action(gui_id, game::Event::INV_SELECT, {gui_id})
-      });
-      $gui.set<DropTarget>(gui_id, {
-          .commit=[&, gui_id](DinkyECS::Entity world_target) -> bool {
-          return place_slot(gui_id, world_target);
-        }
-      });
+
+      if(name.starts_with("body_")) {
+        auto& cell = $gui.cell_for(name);
+        $body_ui.init(cell.x, cell.y, cell.w, cell.h);
+      } else {
+        $gui.set<Rectangle>(gui_id, {});
+        $gui.set<Clickable>(gui_id, {
+            guecs::make_action(gui_id, game::Event::INV_SELECT, {gui_id})
+        });
+        $gui.set<DropTarget>(gui_id, {
+            .commit=[&, gui_id](DinkyECS::Entity world_target) -> bool {
+            return place_slot(gui_id, world_target);
+          }
+        });
+      }
     }
 
     $gui.init();
@@ -54,6 +63,8 @@ namespace gui {
     auto player = world->get_the<components::Player>();
     auto& inventory = world->get<inventory::Model>(player.entity);
 
+    $body_ui.update();
+
     for(const auto& [slot, cell] : $gui.cells()) {
 
       if(inventory.has(slot)) {
@@ -79,6 +90,7 @@ namespace gui {
 
   void StatusUI::render(sf::RenderWindow &window) {
     $gui.render(window);
+    $body_ui.render(window);
     // $gui.debug_layout(window);
   }
 
diff --git a/src/gui/status_ui.hpp b/src/gui/status_ui.hpp
index b64ebcf..233191b 100644
--- a/src/gui/status_ui.hpp
+++ b/src/gui/status_ui.hpp
@@ -4,11 +4,13 @@
 #include "graphics/textures.hpp"
 #include <guecs/ui.hpp>
 #include "gui/guecstra.hpp"
+#include "gui/body_ui.hpp"
 
 namespace gui {
   class StatusUI {
     public:
-      guecs::UI $gui;
+      guecs::UI $gui{};
+      BodyUI $body_ui{};
 
       explicit StatusUI(size_t x, size_t y, size_t width, size_t height);
 
diff --git a/src/main.cpp b/src/main.cpp
index a889731..28a5f35 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -7,6 +7,7 @@
 #include "gui/backend.hpp"
 #include "game/level.hpp"
 #include "graphics/camera.hpp"
+#include "game/systems.hpp"
 
 int main(int argc, char* argv[]) {
   try {
@@ -21,6 +22,7 @@ int main(int argc, char* argv[]) {
     sound::mute(true);
 
     gui::FSM main;
+    System::init(main.$systems);
     main.event(game::Event::START);
 
     sound::play("ambient_1", true);
diff --git a/src/meson.build b/src/meson.build
index 35ec50d..8017508 100644
--- a/src/meson.build
+++ b/src/meson.build
@@ -19,6 +19,7 @@ sources = files(
   'gui/status_ui.cpp',
   'gui/main_ui.cpp',
   'gui/overlay_ui.cpp',
+  'gui/body_ui.cpp',
 
   # graphics
   'graphics/animation.cpp',
diff --git a/tests/battle.cpp b/tests/battle.cpp
index eb46d09..d33ee05 100644
--- a/tests/battle.cpp
+++ b/tests/battle.cpp
@@ -25,20 +25,17 @@ TEST_CASE("battle operations fantasy", "[combat-battle]") {
 
   DinkyECS::Entity host = 0;
   ai::EntityAI host_ai("Host::actions", host_start, host_goal);
-  components::Combat host_combat{
-    .hp=100, .max_hp=100, .ap_delta=6, .max_ap=12, .damage=20};
+  components::Combat host_combat{.ap_delta=6, .max_ap=12, .damage=20};
   battle.add_enemy({host, &host_ai, &host_combat, true});
 
   DinkyECS::Entity axe_ranger = 1;
   ai::EntityAI axe_ai("Enemy::actions", ai_start, ai_goal);
-  components::Combat axe_combat{
-    .hp=20, .max_hp=20, .ap_delta=8, .max_ap=12, .damage=20};
+  components::Combat axe_combat{.ap_delta=8, .max_ap=12, .damage=20};
   battle.add_enemy({axe_ranger, &axe_ai, &axe_combat});
 
   DinkyECS::Entity rat = 2;
   ai::EntityAI rat_ai("Enemy::actions", ai_start, ai_goal);
-  components::Combat rat_combat{
-    .hp=10, .max_hp=10, .ap_delta=2, .max_ap=10, .damage=10};
+  components::Combat rat_combat{.ap_delta=2, .max_ap=10, .damage=10};
   battle.add_enemy({rat, &rat_ai, &rat_combat});
 
   battle.set_all("enemy_found", true);
@@ -50,8 +47,8 @@ TEST_CASE("battle operations fantasy", "[combat-battle]") {
   battle.set(host, "have_healing", false);
   battle.set(host, "tough_personality", false);
 
-  while(host_combat.hp > 0) {
-    battle.set(host, "health_good", host_combat.hp > 20);
+  while(!host_combat.is_dead()) {
+    battle.set(host, "health_good", host_combat.almost_dead());
 
     battle.player_request("use_healing");
     battle.player_request("kill_enemy");
@@ -62,11 +59,6 @@ TEST_CASE("battle operations fantasy", "[combat-battle]") {
     while(auto act = battle.next()) {
       auto& [enemy, wants_to, cost, enemy_state] = *act;
 
-      // fmt::println(">>>>> entity: {} wants to {} cost={}; has {} HP; {} ap",
-      //     enemy.entity, wants_to,
-      //     cost, enemy.combat->hp,
-      //     enemy.combat->ap);
-
       switch(enemy_state) {
         case BattleHostState::agree:
           // fmt::println("HOST and PLAYER requests match {}, doing it.", wants_to);
diff --git a/tests/loot.cpp b/tests/loot.cpp
index 6f72bd2..eac74fe 100644
--- a/tests/loot.cpp
+++ b/tests/loot.cpp
@@ -10,12 +10,12 @@ using namespace components;
 TEST_CASE("test the loot ui", "[loot]") {
   auto items = settings::get("assets/items.json");
   DinkyECS::World world;
-  auto torch = world.entity();
-  auto& data = items["TORCH_BAD"];
+  auto repair_kit = world.entity();
+  auto& data = items["REPAIR_KIT"];
 
   components::init();
-  components::configure_entity(world, torch, data["components"]);
+  components::configure_entity(world, repair_kit, data["components"]);
 
-  auto& torch_sprite = world.get<Sprite>(torch);
-  REQUIRE(torch_sprite.name == "torch_horizontal_floor");
+  auto& repair_kit_sprite = world.get<Sprite>(repair_kit);
+  REQUIRE(repair_kit_sprite.name == "repair_kit");
 }
diff --git a/tests/palette.cpp b/tests/palette.cpp
index a96ad81..a38ad8e 100644
--- a/tests/palette.cpp
+++ b/tests/palette.cpp
@@ -11,14 +11,8 @@ TEST_CASE("color palette test", "[color-palette]") {
   // confirm it's idempotent
   palette::init();
 
-  sf::Color expect{10, 10, 10, 255};
-
   auto gui_text = palette::get("gui/theme:dark_dark");
-  REQUIRE(gui_text == expect);
-
-  gui_text = palette::get("gui/theme", "mid");
-  REQUIRE(gui_text != expect);
-
-  expect = {100, 100, 100, 255};
-  REQUIRE(gui_text == expect);
+  REQUIRE(gui_text.r > 0);
+  REQUIRE(gui_text.g > 0);
+  REQUIRE(gui_text.b > 0);
 }
diff --git a/tests/systems.cpp b/tests/systems.cpp
index 55c7308..4272a9d 100644
--- a/tests/systems.cpp
+++ b/tests/systems.cpp
@@ -3,7 +3,9 @@
 #include "game/systems.hpp"
 #include <cmath>
 #include <numbers>
+#include "game/registry.hpp"
 
+using components::Position;
 
 TEST_CASE("figure out best rotation direction", "[systems-rotate]") {
   Matrix map = matrix::make(3, 3);
@@ -35,104 +37,45 @@ TEST_CASE("figure out best rotation direction", "[systems-rotate]") {
   }
 }
 
-using MovingFunc = std::function<void()>;
-using CombatFunc = std::function<void(bool)>;
-using RenderFunc = std::function<void()>;
-using UpdateFunc = std::function<void()>;
-using UseFunc = std::function<void()>;
-using PickupFunc = std::function<void()>;
 
-struct Engine {
-  std::vector<MovingFunc> $moving;
-  std::vector<CombatFunc> $combat;
-  std::vector<RenderFunc> $render;
-  std::vector<UpdateFunc> $update;
-  std::vector<UseFunc> $use;
-  std::vector<PickupFunc> $pickup;
-
-  void addMoving(MovingFunc action) {
-    $moving.emplace_back(action);
-  }
-
-  void addCombat(CombatFunc action) {
-    $combat.emplace_back(action);
-  }
-
-  void addRender(RenderFunc action) {
-    $render.emplace_back(action);
-  }
-
-  void addUpdate(UpdateFunc action) {
-    $update.emplace_back(action);
-  }
-
-  void addUse(UseFunc action) {
-    $use.emplace_back(action);
-  }
-
-  void addPickup(PickupFunc action) {
-    $pickup.emplace_back(action);
-  }
-
-  void runMoving() {
-    for(auto func : $moving) {
-      func();
-    }
-  }
-
-  void runCombat(bool attr) {
-    for(auto func : $combat) {
-      func(attr);
-    }
-  }
-
-  void runRender() {
-    for(auto func : $render) {
-      func();
-    }
-  }
-
-  void runUpdate() {
-    for(auto func : $update) {
-      func();
-    }
-  }
-
-  void runUse() {
-    for(auto func : $use) {
-      func();
-    }
-  }
-
-  void runPickup() {
-    for(auto func : $pickup) {
-      func();
-    }
-  }
-};
-
-void test_system_1() {
-  fmt::println("TEST 1");
+void test_moving(Position& move_to) {
+  fmt::println("MOVING: {},{}", move_to.location.x, move_to.location.y);
 }
 
-void test_combat(bool what) {
-  fmt::println("TEST 2: {}", what);
+void test_combat(int attack_id) {
+  fmt::println("ATTACK: {}", attack_id);
+}
+
+void test_render() {
+  fmt::println("RENDER");
+}
+
+void test_update() {
+  fmt::println("UPDATE");
+}
+
+void test_use_item(const std::string& slot_name) {
+  fmt::println("USE ITEM {}", slot_name);
+}
+
+void test_pickup() {
+  fmt::println("PICKUP");
 }
 
 TEST_CASE("new system running engine thing", "[systems-engine]") {
-  Engine systems;
+  System::Registry systems;
 
-  systems.addMoving(test_system_1);
+  systems.addMoving(test_moving);
   systems.addCombat(test_combat);
-  systems.addRender(test_system_1);
-  systems.addUpdate(test_system_1);
-  systems.addUse(test_system_1);
-  systems.addPickup(test_system_1);
+  systems.addRender(test_render);
+  systems.addUpdate(test_update);
+  systems.addUseItem(test_use_item);
+  systems.addPickup(test_pickup);
 
-  systems.runCombat(false);
-  systems.runMoving();
+  systems.runCombat(1);
+  systems.runMoving({1,1});
   systems.runRender();
   systems.runUpdate();
-  systems.runUse();
+  systems.runUseItem("hand_l");
   systems.runPickup();
 }
diff --git a/tests/textures.cpp b/tests/textures.cpp
index eb5d490..50d3c8e 100644
--- a/tests/textures.cpp
+++ b/tests/textures.cpp
@@ -11,13 +11,13 @@ TEST_CASE("test texture management", "[textures]") {
   components::init();
   textures::init();
 
-  auto spider = textures::get_sprite("rat_with_sword");
+  auto spider = textures::get_sprite("spider_bot");
   REQUIRE(spider.sprite != nullptr);
   REQUIRE(spider.texture != nullptr);
   REQUIRE(spider.frame_size.x == TEXTURE_WIDTH);
   REQUIRE(spider.frame_size.y == TEXTURE_HEIGHT);
 
-  auto image = textures::load_image("assets/sprites/rat_with_sword.png");
+  auto image = textures::load_image("assets/sprites/spider_bot.png");
 
   size_t floor_tile = textures::get_id("floor_tile");
   size_t gray_stone = textures::get_id("door_plain");