diff --git a/assets/bosses.json b/assets/bosses.json
new file mode 100644
index 0000000..bc419d3
--- /dev/null
+++ b/assets/bosses.json
@@ -0,0 +1,14 @@
+{
+  "RAT_KING": {
+    "background": "boss_fight_background",
+    "weapon_sound": "Sword_Hit_2",
+    "components": [
+      {"_type": "Combat", "hp": 50, "max_hp": 50, "damage": 50, "dead": false},
+      {"_type": "Motion", "dx": 0, "dy": 0, "random": false},
+      {"_type": "EnemyConfig", "hearing_distance": 3},
+      {"_type": "Animation", "easing": 2, "ease_rate": 0.2,  "scale": 0.2, "simple": false, "frames": 2, "speed": 0.02},
+      {"_type": "Sprite", "name": "rat_king_boss", "width": 720, "height": 720},
+      {"_type": "Sound", "attack": "Marmot_Scream_1", "death": "Creature_Death_1"}
+    ]
+  }
+}
diff --git a/assets/config.json b/assets/config.json
index ea0fd89..a2a7c8d 100644
--- a/assets/config.json
+++ b/assets/config.json
@@ -48,11 +48,6 @@
     "down_the_well": "assets/down_the_well.jpg",
     "boss_fight_background": "assets/rat_king_boss_fight_background.jpg"
   },
-  "enemy": {
-    "HEARING_DISTANCE": 5
-  },
-  "player": {
-  },
   "worldgen": {
     "enemy_probability": 80,
     "empty_room_probability": 10,
diff --git a/assets/devices.json b/assets/devices.json
index ad5eab3..f5033ee 100644
--- a/assets/devices.json
+++ b/assets/devices.json
@@ -14,7 +14,7 @@
       {"_type": "Device",
         "config": {"test": true},
         "events": ["Events::GUI::STAIRS_DOWN"]},
-      {"_type": "Sprite", "name": "well_down"}
+      {"_type": "Sprite", "name": "well_down", "width": 256, "height": 256}
     ]
   },
   "STAIRS_UP": {
@@ -31,7 +31,7 @@
       {"_type": "Device",
         "config": {"test": true},
         "events": ["Events::GUI::STAIRS_UP"]},
-      {"_type": "Sprite", "name": "rope_vines_up"}
+      {"_type": "Sprite", "name": "rope_vines_up", "width": 256, "height": 256}
     ]
   },
   "TRIPWIRE_TRAP": {
@@ -47,7 +47,7 @@
       {"_type": "Device",
         "config": {"test": true},
         "events": ["Events::GUI::TRAP"]},
-      {"_type": "Sprite", "name": "tripwire_trap"}
+      {"_type": "Sprite", "name": "tripwire_trap", "width": 256, "height": 256}
     ]
   }
 }
diff --git a/assets/enemies.json b/assets/enemies.json
index 9649323..f639fd9 100644
--- a/assets/enemies.json
+++ b/assets/enemies.json
@@ -21,7 +21,7 @@
       {"_type": "Motion", "dx": 0, "dy": 0, "random": false},
       {"_type": "EnemyConfig", "hearing_distance": 5},
       {"_type": "Animation", "easing": 1, "ease_rate": 0.2,  "scale": 0.1, "simple": true, "frames": 10, "speed": 0.3},
-      {"_type": "Sprite", "name": "armored_knight"},
+      {"_type": "Sprite", "name": "armored_knight", "width": 256, "height": 256, "width": 256, "height": 256},
       {"_type": "Sound", "attack": "Sword_Hit_2", "death": "Humanoid_Death_1"}
     ]
   },
@@ -34,7 +34,7 @@
       {"_type": "Combat", "hp": 40, "max_hp": 40, "damage": 10, "dead": false},
       {"_type": "Motion", "dx": 0, "dy": 0, "random": true},
       {"_type": "EnemyConfig", "hearing_distance": 5},
-      {"_type": "Sprite", "name": "axe_ranger"},
+      {"_type": "Sprite", "name": "axe_ranger", "width": 256, "height": 256},
       {"_type": "Animation", "easing": 3, "ease_rate": 0.5,  "scale": 0.1, "simple": false, "frames": 2, "speed": 0.6},
       {"_type": "Sound", "attack": "Sword_Hit_2", "death": "Ranger_1"}
     ]
@@ -48,8 +48,8 @@
       {"_type": "Combat", "hp": 50, "max_hp": 50, "damage": 50, "dead": false},
       {"_type": "Motion", "dx": 0, "dy": 0, "random": false},
       {"_type": "EnemyConfig", "hearing_distance": 5},
-      {"_type": "Sprite", "name": "evil_eye"},
-      {"_type": "Animation", "easing": 3, "ease_rate": 0.1,  "scale": 0.1, "simple": false, "frames": 2, "speed": 0.3},
+      {"_type": "Sprite", "name": "evil_eye", "width": 256, "height": 256},
+      {"_type": "Animation", "easing": 3, "ease_rate": 0.1,  "scale": 0.1, "simple": false, "frames": 2, "speed": 0.1},
       {"_type": "Sound", "attack": "Evil_Eye_Sound_2", "death": "Evil_Eye_Sound_1"}
     ]
   },
@@ -63,25 +63,10 @@
       {"_type": "Motion", "dx": 0, "dy": 0, "random": false},
       {"_type": "EnemyConfig", "hearing_distance": 10},
       {"_type": "Animation", "easing": 3, "ease_rate": 0.5,  "scale": 0.1, "simple": true, "frames": 10, "speed": 1.0},
-      {"_type": "Sprite", "name": "rat_with_sword"},
+      {"_type": "Sprite", "name": "rat_with_sword", "width": 256, "height": 256},
       {"_type": "Sound", "attack": "Small_Rat", "death": "Creature_Death_1"}
     ]
   },
-  "RAT_KING": {
-    "placement": "fixed",
-    "components": [
-      {"_type": "Tile", "display": "\u08ac",
-        "foreground": [205, 164, 100],
-        "background": [30, 20, 75]
-      },
-      {"_type": "Combat", "hp": 50, "max_hp": 50, "damage": 50, "dead": false},
-      {"_type": "Motion", "dx": 0, "dy": 0, "random": false},
-      {"_type": "EnemyConfig", "hearing_distance": 3},
-      {"_type": "Animation", "easing": 2, "ease_rate": 0.2,  "scale": 0.2, "simple": false, "frames": 2, "speed": 0.02},
-      {"_type": "Sprite", "name": "rat_king_boss"},
-      {"_type": "Sound", "attack": "Marmot_Scream_1", "death": "Creature_Death_1"}
-    ]
-  },
   "SPIDER_GIANT_HAIRY": {
     "components": [
       {"_type": "Tile", "display": "\u08ea",
@@ -92,7 +77,7 @@
       {"_type": "Motion", "dx": 0, "dy": 0, "random": false},
       {"_type": "EnemyConfig", "hearing_distance": 10},
       {"_type": "Animation", "easing": 2, "ease_rate": 0.5,  "scale": 0.1, "simple": true, "frames": 10, "speed": 1.0},
-      {"_type": "Sprite", "name": "hairy_spider"},
+      {"_type": "Sprite", "name": "hairy_spider", "width": 256, "height": 256},
       {"_type": "Sound", "attack": "Spider_1", "death": "Spider_2"}
     ]
   }
diff --git a/assets/items.json b/assets/items.json
index 599b39f..f41c140 100644
--- a/assets/items.json
+++ b/assets/items.json
@@ -10,7 +10,7 @@
         "foreground": [24, 120, 189],
         "background": [230,120, 120]
       },
-      {"_type": "Sprite", "name": "torch_horizontal_floor"},
+      {"_type": "Sprite", "name": "torch_horizontal_floor", "width": 256, "height": 256},
       {"_type": "Sound", "attack": "pickup", "death": "blank"}
     ]
   },
@@ -25,7 +25,7 @@
         "foreground": [24, 120, 189],
         "background": [24, 120, 189]
       },
-      {"_type": "Sprite", "name": "cinqueda"},
+      {"_type": "Sprite", "name": "cinqueda", "width": 256, "height": 256},
       {"_type": "Sound", "attack": "pickup", "death": "blank"}
     ]
   },
@@ -39,7 +39,7 @@
         "background": [150, 100, 189]
       },
       {"_type": "Loot", "amount": 10},
-      {"_type": "Sprite", "name": "barrel_small"},
+      {"_type": "Sprite", "name": "barrel_small", "width": 256, "height": 256},
       {"_type": "Sound", "attack": "pickup", "death": "blank"}
     ],
     "inventory_count": 1
@@ -55,7 +55,7 @@
         "background": [24, 205, 210]
       },
       {"_type": "LightSource", "strength": 50, "radius": 2.8},
-      {"_type": "Sprite", "name": "torch_pillar"},
+      {"_type": "Sprite", "name": "torch_pillar", "width": 256, "height": 256},
       {"_type": "Sound", "attack": "pickup", "death": "blank"}
     ]
   },
@@ -70,7 +70,7 @@
         "background": [255, 205, 189]
       },
       {"_type": "Curative", "hp": 20},
-      {"_type": "Sprite", "name": "healing_potion_small"},
+      {"_type": "Sprite", "name": "healing_potion_small", "width": 256, "height": 256},
       {"_type": "Sound", "attack": "pickup", "death": "blank"}
     ]
   },
@@ -85,7 +85,7 @@
         "background": [24, 205, 189]
       },
       {"_type": "Loot", "amount": 10},
-      {"_type": "Sprite", "name": "grave_stone"},
+      {"_type": "Sprite", "name": "grave_stone", "width": 256, "height": 256},
       {"_type": "Sound", "attack": "pickup", "death": "blank"}
     ]
   }
diff --git a/boss_fight_ui.cpp b/boss_fight_ui.cpp
index 5b9057d..26e3fe9 100644
--- a/boss_fight_ui.cpp
+++ b/boss_fight_ui.cpp
@@ -3,45 +3,56 @@
 #include "sound.hpp"
 
 namespace gui {
-  BossFightUI::BossFightUI(GameLevel level)
-    : $level(level)
+  BossFightUI::BossFightUI(GameLevel level, std::string boss_name)
+    : $level(level),
+      $config($level.world->get_the<components::GameConfig>()),
+      $boss_name(boss_name)
   {
-    $status.position(0, 0, 300, SCREEN_HEIGHT);
+    $status.position(0, 0, BOSS_VIEW_X, SCREEN_HEIGHT);
     $status.layout(
         "[main_status]"
         "[(150)status_3|(150)status_4]"
         "[(150)status_5|(150)status_6]"
-        "[(150)status_7|(150)status_8]"
-        );
+        "[(150)status_7|(150)status_8]");
+
+    $overlay.position(BOSS_VIEW_X, BOSS_VIEW_Y,
+        BOSS_VIEW_WIDTH, BOSS_VIEW_HEIGHT);
 
-    $overlay.position(300, 0, SCREEN_WIDTH - 300, SCREEN_HEIGHT);
     $overlay.layout("[overlay_1|overlay_2|overlay_4]"
-    "[overlay_5|overlay_6|overlay_8]"
-    "[overlay_9|overlay_10|overlay_12]"
-    "[overlay_13|overlay_14|overlay_16]");
+      "[overlay_5|overlay_6|overlay_8]"
+      "[overlay_9|overlay_10|overlay_12]"
+      "[overlay_13|overlay_14|overlay_16]");
 
-    $boss_background = textures::get("boss_fight_background");
-    auto bg_bounds = $boss_background.sprite->getLocalBounds();
-    $boss_background.sprite->setPosition({300, 0});
+    $sounds = components::get<components::Sound>($config.bosses[boss_name]);
+    $weapon_hit_sound = $config.bosses[$boss_name]["weapon_sound"];
+  }
 
-    $boss_image = textures::get("rat_king_boss");
-    sf::IntRect frame_rect{{0,0},{720,720}};
+  void BossFightUI::configure_sprite() {
+    auto& boss = $config.bosses[$boss_name];
+    $sprite_config = components::get<components::Sprite>(boss);
+    $animation = components::get<components::Animation>(boss);
+    $animation.texture_width = $sprite_config.width;
+
+    $boss_image = textures::get($sprite_config.name);
+    sf::IntRect frame_rect{{0,0},{$sprite_config.width,$sprite_config.height}};
     $boss_image.sprite->setTextureRect(frame_rect);
     $boss_image.sprite->setScale($scale);
+
     auto bounds = $boss_image.sprite->getLocalBounds();
+    auto bg_bounds = $boss_background.sprite->getLocalBounds();
     float x_diff = bg_bounds.size.x / 2;
     $boss_image.sprite->setOrigin({bounds.size.x / 2, bounds.size.y / 2});
-    $boss_image.sprite->setPosition({300.0f + x_diff, bounds.size.y / 2});
+    $boss_image.sprite->setPosition({float(BOSS_VIEW_X) + x_diff, bounds.size.y / 2});
   }
 
-  void BossFightUI::init() {
-    auto& config = $level.world->get_the<components::GameConfig>();
-    $sounds = components::get<components::Sound>(config.enemies["RAT_KING"]);
-    $animation = components::get<components::Animation>(config.enemies["RAT_KING"]);
-    $animation.texture_width = 720;
-
+  void BossFightUI::configure_background() {
+    auto& boss = $config.bosses[$boss_name];
+    $boss_background = textures::get(boss["background"]);
+    $boss_background.sprite->setPosition({BOSS_VIEW_X, BOSS_VIEW_Y});
     $status.world().set_the<Background>({$status.$parser});
+  }
 
+  void BossFightUI::configure_gui() {
     for(auto& [name, cell] : $status.cells()) {
       auto button = $status.entity(name);
       $status.set<Rectangle>(button, {});
@@ -66,8 +77,15 @@ namespace gui {
     $overlay.init();
   }
 
+  void BossFightUI::init() {
+    // background must come first
+    configure_background();
+    configure_sprite();
+    configure_gui();
+  }
+
   void BossFightUI::bounce_boss(sf::RenderWindow& window) {
-    sf::IntRect frame_rect{{0,0},{720,720}};
+    sf::IntRect frame_rect{{0,0},{$sprite_config.width,$sprite_config.height}};
     auto scale = $scale;
     $animation.step(scale, frame_rect);
     $boss_image.sprite->setScale(scale);
@@ -76,8 +94,8 @@ namespace gui {
       sound::play($sounds.attack);
     }
 
-    if(!sound::playing("Sword_Hit_2") && $animation.subframe > 1.2 && $animation.subframe < 1.5) {
-      sound::play("Sword_Hit_2");
+    if(!sound::playing($weapon_hit_sound) && $animation.subframe > 1.2 && $animation.subframe < 1.5) {
+      sound::play($weapon_hit_sound);
     }
 
     $boss_image.sprite->setTextureRect(frame_rect);
diff --git a/boss_fight_ui.hpp b/boss_fight_ui.hpp
index 6e6f4a4..81b8981 100644
--- a/boss_fight_ui.hpp
+++ b/boss_fight_ui.hpp
@@ -4,6 +4,7 @@
 #include <SFML/Graphics/Font.hpp>
 #include "guecs.hpp"
 #include "textures.hpp"
+#include "components.hpp"
 #include <SFML/System/Clock.hpp>
 
 // aspect ratio of art is 3/2 so 1.5
@@ -22,15 +23,19 @@ namespace gui {
       int $boss_hp = 10;
       bool $boss_hit = false;
       sf::Vector2f $scale{0.8, 0.8};
+      std::string $weapon_hit_sound;
+      components::Sprite $sprite_config;
       components::Sound $sounds;
       components::Animation $animation;
       GameLevel $level;
+      components::GameConfig& $config;
+      std::string $boss_name;
       guecs::UI $status;
       guecs::UI $overlay;
       textures::SpriteTexture $boss_image;
       textures::SpriteTexture $boss_background;
 
-      BossFightUI(GameLevel level);
+      BossFightUI(GameLevel level, std::string boss_name);
 
       void init();
       void render(sf::RenderWindow& window);
@@ -38,5 +43,8 @@ namespace gui {
       void bounce_boss(sf::RenderWindow& window);
       bool boss_dead() { return $boss_hp < 0; }
       void update_level(GameLevel& level);
+      void configure_sprite();
+      void configure_background();
+      void configure_gui();
   };
 }
diff --git a/components.hpp b/components.hpp
index a240ff8..7f1fe04 100644
--- a/components.hpp
+++ b/components.hpp
@@ -46,6 +46,7 @@ namespace components {
     Config items;
     Config tiles;
     Config devices;
+    Config bosses;
   };
 
   struct EnemyConfig {
@@ -91,6 +92,8 @@ namespace components {
 
   struct Sprite {
     string name;
+    int width;
+    int height;
   };
 
   struct Sound {
@@ -118,7 +121,7 @@ namespace components {
   template <typename T> struct NameOf;
 
   ENROLL_COMPONENT(Tile, display, foreground, background);
-  ENROLL_COMPONENT(Sprite, name);
+  ENROLL_COMPONENT(Sprite, name, width, height);
   ENROLL_COMPONENT(Curative, hp);
   ENROLL_COMPONENT(LightSource, strength, radius);
   ENROLL_COMPONENT(Weapon, damage);
diff --git a/constants.hpp b/constants.hpp
index 2bd01fa..5a7d1c4 100644
--- a/constants.hpp
+++ b/constants.hpp
@@ -11,6 +11,12 @@ constexpr const int SCREEN_WIDTH=1280;
 constexpr const int SCREEN_HEIGHT=720;
 constexpr const int RAY_VIEW_X=(SCREEN_WIDTH - RAY_VIEW_WIDTH);
 constexpr const int RAY_VIEW_Y=0;
+
+constexpr const int BOSS_VIEW_WIDTH=1080;
+constexpr const int BOSS_VIEW_HEIGHT=SCREEN_HEIGHT;
+constexpr const int BOSS_VIEW_X=SCREEN_WIDTH - BOSS_VIEW_WIDTH;
+constexpr const int BOSS_VIEW_Y=0;
+
 constexpr const bool VSYNC=false;
 constexpr const int FRAME_LIMIT=60;
 constexpr const int NUM_SPRITES=1;
diff --git a/gui_fsm.cpp b/gui_fsm.cpp
index 47b1ad2..60e6653 100644
--- a/gui_fsm.cpp
+++ b/gui_fsm.cpp
@@ -20,7 +20,7 @@ namespace gui {
     $map_ui($level),
     $combat_ui($level),
     $status_ui($level),
-    $boss_fight_ui($level),
+    $boss_fight_ui($level, "RAT_KING"),
     $font{FONT_FILE_NAME}
     {
     }
diff --git a/main.cpp b/main.cpp
index d5aa686..89c047a 100644
--- a/main.cpp
+++ b/main.cpp
@@ -6,7 +6,7 @@
 int main(int argc, char* argv[]) {
   textures::init();
   sound::init();
-  sound::mute(false);
+  sound::mute(true);
   gui::FSM main;
   main.event(gui::Event::STARTED);
   Autowalker walker(main);
diff --git a/save.cpp b/save.cpp
index 43ef935..5489a2e 100644
--- a/save.cpp
+++ b/save.cpp
@@ -35,8 +35,9 @@ void save::load_configs(DinkyECS::World &world) {
   Config items("./assets/items.json");
   Config tiles("./assets/tiles.json");
   Config devices("./assets/devices.json");
+  Config bosses("./assets/bosses.json");
 
   world.set_the<GameConfig>({
-    game, enemies, items, tiles, devices
+    game, enemies, items, tiles, devices, bosses
   });
 }