diff --git a/.forgejo/workflows/rust.yml b/.forgejo/workflows/rust.yml
index 84e04f9..01a4dfd 100644
--- a/.forgejo/workflows/rust.yml
+++ b/.forgejo/workflows/rust.yml
@@ -59,10 +59,11 @@ jobs:
             target
           key: "${{runner.os}} Rust ${{steps.rust-toolchain.outputs.cachekey}}"
       - run: mkdir .ci-destdir
-      - run: cargo install --path . --locked --root .ci-destdir
+      - run: cargo install --path . --locked --root .
       - run: find .ci-destdir
       - uses: forgejo/upload-artifact@v3
         with:
           name: Powercreep
-          path:
-            .ci-destdir/*
+          path: |
+            bin
+            assets
diff --git a/assets/entities/human.png b/assets/entities/human.png
new file mode 100644
index 0000000..cd10a96
Binary files /dev/null and b/assets/entities/human.png differ
diff --git a/assets/entities/human_captured.png b/assets/entities/human_captured.png
new file mode 100644
index 0000000..505bfc8
Binary files /dev/null and b/assets/entities/human_captured.png differ
diff --git a/assets/entities/human_overworld.png b/assets/entities/human_overworld.png
new file mode 100644
index 0000000..43609bf
Binary files /dev/null and b/assets/entities/human_overworld.png differ
diff --git a/build.rs b/build.rs
index 15a5cd1..e718dc4 100644
--- a/build.rs
+++ b/build.rs
@@ -122,16 +122,20 @@ impl AssetsWriter {
 			writeln!(file, "{indent}impl Assets {{")?;
 			writeln!(
 				file,
-				"{indent}\tpub fn load(c: &mut comfy::EngineContext<'_>) {{"
+				"{indent}\tpub fn load(_ctx: &mut comfy::EngineContext<'_>) {{"
 			)?;
 			for asset_const_name in root.assets.values() {
-				writeln!(file, "{indent}\t\tc.load_texture_from_bytes({asset_const_name:?}, {asset_const_name});")?;
+				writeln!(file, "{indent}\t\t_ctx.load_texture_from_bytes({asset_const_name:?}, {asset_const_name});")?;
 			}
 			for asset_const_name in root.sound_assets.values() {
-				writeln!(file, "{indent}\t\tcomfy::load_sound_from_bytes({asset_const_name:?}, {asset_const_name}, Default::default());")?;
+				writeln!(file, "{indent}\t\tcomfy::load_sound_from_bytes({asset_const_name:?}, {asset_const_name},")?;
+				writeln!(
+					file,
+					"{indent}\t\t\tcomfy::StaticSoundSettings::new().loop_region(..));"
+				)?;
 			}
 			for group_name in root.groups.keys() {
-				writeln!(file, "{indent}\t\t{group_name}::Assets::load(c);")?;
+				writeln!(file, "{indent}\t\t{group_name}::Assets::load(_ctx);")?;
 			}
 			writeln!(file, "{indent}\t}}")?;
 			writeln!(file, "{indent}}}")?;
diff --git a/src/activities/house/furniture.rs b/src/activities/house/furniture.rs
index 0377185..916eecc 100644
--- a/src/activities/house/furniture.rs
+++ b/src/activities/house/furniture.rs
@@ -1,5 +1,5 @@
 use comfy::{error, texture_id, EngineContext, HashSet, Lazy, Mutex, TextureHandle};
-use std::{fmt::Debug, fs, io, sync::Arc};
+use std::{fmt::Debug, fs, io, path::PathBuf, sync::Arc};
 
 static ASSETS_LOADED: Lazy<Arc<Mutex<HashSet<String>>>> =
 	Lazy::new(|| Arc::new(Mutex::new(HashSet::new())));
@@ -39,10 +39,13 @@ impl FurnitureAsset {
 		if loaded.contains(&path) {
 			return Some(texture_id(&path));
 		}
-		let bytes = match fs::read(format!(
-			"{}/assets/furniture/{path}",
-			env!("CARGO_MANIFEST_DIR")
-		)) {
+
+		let mut asset_path = PathBuf::from(format!("assets/furniture/{path}"));
+		if !asset_path.exists() {
+			asset_path = PathBuf::from(env!("CARGO_MANIFEST_DIR")).join(asset_path);
+		}
+
+		let bytes = match fs::read(asset_path) {
 			Ok(bytes) => bytes,
 			Err(err) if err.kind() == io::ErrorKind::NotFound => return None,
 			Err(err) => {
diff --git a/src/activities/house/mod.rs b/src/activities/house/mod.rs
index 72fe2cc..8679bba 100644
--- a/src/activities/house/mod.rs
+++ b/src/activities/house/mod.rs
@@ -3,45 +3,82 @@ mod grid;
 mod player;
 mod room;
 
-use comfy::{main_camera_mut, random_i32, vec2, EngineContext};
+use crate::assets::ASSETS;
+use comfy::{
+	delta, main_camera_mut, play_sound_id, random_i32, stop_sound_id, vec2,
+	EngineContext, RandomRange as _
+};
 use grid::Grid;
+use indexmap::IndexSet;
 use log::error;
 use player::Player;
 use room::Room;
 
+use super::Activity;
+
 const MAX_ROOMS: i32 = 6;
 
 #[derive(Debug)]
 pub struct HouseState {
 	current_room_id: usize,
 	room_count: usize,
+	human_count: usize,
 	rooms: Vec<Room>,
+	human_rooms: Vec<usize>,
 	//grid: Grid,
 	player: Player,
-	human_layer: bool //Human, magnetic, electric
+	human_layer: bool, //Human, magnetic, electric
+	exit_time: f32,
+
+	/// The energy level remaining in the house. Should decrease by itself, and much
+	/// faster when inhabited by the ghost.
+	pub charge: f32,
+	pub max_charge: f32,
+
+	pub sound_playing: bool
 }
 
 impl HouseState {
 	pub fn generate_new_house(ctx: &mut EngineContext<'_>) -> Self {
 		let room_count = random_i32(2, MAX_ROOMS) as usize;
+		let human_count = random_i32(1, room_count as i32) as usize;
+
+		let mut possible_rooms: IndexSet<usize> = (0 .. room_count).collect();
+		let mut human_rooms = Vec::new();
+		for _ in 0 .. human_count {
+			if !possible_rooms.is_empty() {
+				let random_idx = usize::gen_range(0, possible_rooms.len());
+
+				human_rooms.push(possible_rooms.swap_remove_index(random_idx).unwrap());
+			}
+		}
 
 		let mut rooms = Vec::new();
-		for _ in 0 .. room_count {
-			rooms.push(Room::new(ctx));
+		for i in 0 .. room_count {
+			rooms.push(Room::new(ctx, human_rooms.contains(&i)));
 		}
 
 		let player = Player::new(rooms.first().unwrap());
+		let max_charge = f32::gen_range(2_000.0, 5_000.0);
 		HouseState {
 			current_room_id: 0,
 			room_count,
+			human_count,
 			rooms,
+			human_rooms,
 			player,
-			human_layer: false
+			human_layer: false,
+			exit_time: 0.0,
+			// TODO this should be lower depending on the time elapsed
+			charge: max_charge,
+			max_charge,
+
+			sound_playing: false
 		}
 	}
 }
 
-pub fn draw(state: &crate::State, _ctx: &comfy::EngineContext<'_>) {
+pub fn draw(state: &crate::State, _ctx: &EngineContext<'_>) {
 	let Some(house) = state.house() else {
 		error!("How can I render a house when I'm not in one?!?");
 		return;
@@ -61,13 +98,27 @@ pub fn draw(state: &crate::State, _ctx: &comfy::EngineContext<'_>) {
 	house.player.draw();
 }
 
-pub fn update(state: &mut crate::State, ctx: &mut comfy::EngineContext<'_>) {
+pub fn update(state: &mut crate::State, ctx: &mut EngineContext<'_>) {
+	if state.overworld.sound_playing {
+		stop_sound_id(ASSETS.music.galactic_rap_speedup);
+		state.overworld.sound_playing = false;
+	}
+
 	let mut camera = main_camera_mut();
 	camera.center = vec2(0.0, 0.0);
+	drop(camera);
 
-	let house = state.house_mut(ctx);
+	let Some(house) = state.house_mut(ctx) else {
+		error!("WTF I cannot update a house without a house");
+		return;
+	};
 	let current_room = house.rooms.get(house.current_room_id).unwrap();
-	house.player.update(&current_room.grid);
+	house.player.update(&current_room);
+
+	if !house.sound_playing {
+		play_sound_id(ASSETS.music.mesmerizing_galaxy_loop);
+		house.sound_playing = true;
+	}
 
 	if house.player.is_moving_to_right_room(current_room) {
 		if house.current_room_id < (house.room_count - 1) {
@@ -88,4 +139,18 @@ pub fn update(state: &mut crate::State, ctx: &mut comfy::EngineContext<'_>) {
 			house.player.reset_on_room(current_room, true);
 		}
 	}
+
+	if house.player.successfull_attack {
+		house.human_layer = true;
+	}
+
+	if house.human_layer {
+		house.exit_time += delta();
+	}
+
+	if house.exit_time >= 2.0 {
+		state.score += 500.0;
+		state.ghost.overworld_pos -= vec2(0.0, 1.0);
+		state.activity = Activity::Overworld;
+	}
 }
diff --git a/src/activities/house/player.rs b/src/activities/house/player.rs
index d78cfbb..d3200be 100644
--- a/src/activities/house/player.rs
+++ b/src/activities/house/player.rs
@@ -2,7 +2,11 @@ use super::{
 	room::{Room, SCALE},
 	Grid
 };
-use comfy::{delta, draw_circle, is_key_down, vec2, KeyCode, Vec2, RED};
+use comfy::{
+	delta, draw_circle, draw_sprite, is_key_down, is_key_pressed, main_camera_mut,
+	texture_id, vec2, KeyCode, Vec2, RED, WHITE
+};
+use log::error;
 use std::collections::HashSet;
 
 #[derive(Debug)]
@@ -13,7 +17,8 @@ pub struct Player {
 	current_acceleration: f32,
 	movement_time: f32,
 	connection: usize,
-	next_connections: Vec<usize>
+	next_connections: Vec<usize>,
+	pub successfull_attack: bool
 }
 
 impl Player {
@@ -28,15 +33,24 @@ impl Player {
 			current_acceleration: 0.0,
 			movement_time: 0.0,
 			connection: 0,
-			next_connections: vec![1]
+			next_connections: vec![1],
+			successfull_attack: false
 		}
 	}
 
 	pub fn draw(&self) {
-		draw_circle(self.position, 0.5, RED, 0);
+		//draw_circle(self.position, 0.5, RED, 0);
+		draw_sprite(
+			texture_id("ghost_house"),
+			self.position,
+			WHITE,
+			5,
+			vec2(1.25, 1.25)
+		);
 	}
 
-	pub fn update(&mut self, grid: &Grid) {
+	pub fn update(&mut self, room: &Room) {
+		let grid = &room.grid;
 		let allowed_movement = get_allowed_movement(self, grid);
 
 		move_player(self, allowed_movement);
@@ -44,6 +58,8 @@ impl Player {
 		if !on_current_connection(self, grid) && !update_connections(self, grid) {
 			snap_to_closest_node(self, grid);
 		}
+
+		attack_human_routine(self, room);
 	}
 
 	pub fn is_moving_to_right_room(&self, room: &Room) -> bool {
@@ -353,3 +369,42 @@ fn snap_to_closest_node(player: &mut Player, grid: &Grid) {
 
 	player.position = *closest_node;
 }
+
+fn attack_human_routine(player: &mut Player, room: &Room) {
+	let range = 1.0;
+
+	if is_key_pressed(KeyCode::Space) {
+		//In some node range?
+		let mut in_range = false;
+		for node in &room.grid.nodes {
+			if in_node_range(&player.position, node, range) {
+				in_range = true;
+				break;
+			}
+		}
+
+		if in_range {
+			let (human_pos, human_nodes) = room.get_human_information();
+
+			let mut human_attacked = false;
+
+			if human_pos.is_some() {
+				for node_index in human_nodes {
+					if in_node_range(
+						&player.position,
+						room.grid.nodes.get(*node_index).unwrap(),
+						range
+					) {
+						human_attacked = true;
+					}
+				}
+			}
+
+			if human_attacked {
+				player.successfull_attack = true;
+			} else {
+				main_camera_mut().shake(1.0, 1.0);
+			}
+		}
+	}
+}
diff --git a/src/activities/house/room.rs b/src/activities/house/room.rs
index f25ae5d..2c7c85c 100644
--- a/src/activities/house/room.rs
+++ b/src/activities/house/room.rs
@@ -1,8 +1,9 @@
 use super::{furniture::Furniture, grid::Grid};
-use crate::game;
+use crate::game::{self, ZLayer};
 use comfy::{
 	draw_rect, draw_rect_outline, draw_sprite, error, random_i32, vec2, EngineContext,
 	HashSet, Index, RandomRange as _, Vec2, GREEN, PURPLE, RED, WHITE
+	PURPLE, RED, WHITE
 };
 use indexmap::IndexSet;
 
@@ -30,7 +31,9 @@ pub struct Room {
 	_room_type: RoomType,
 	pub size: (u8, u8), //(width, height)
 	pub grid: Grid,
-	furnitures: Vec<Tile>
+	furnitures: Vec<Tile>,
+	human_pos: Option<Vec2>,
+	human_nodes: Vec<usize>
 }
 
 impl RoomType {
@@ -47,20 +50,60 @@ impl RoomType {
 }
 
 impl Room {
-	pub fn new(ctx: &mut EngineContext<'_>) -> Self {
+	pub fn new(ctx: &mut EngineContext<'_>, with_human: bool) -> Self {
 		let room_type = RoomType::random();
 		let size = Self::random_size(&room_type);
 
 		let furnitures = Self::random_room_furniture(&room_type, size, ctx);
 
+		let grid = Self::create_grid(size.0, size.1);
+
+		let (human_pos, human_nodes) = if with_human {
+			let mut human_pos = vec2(random_i32(1, size.0 as i32) as f32 + 0.5, 1.0f32);
+			human_pos -= vec2(size.0 as f32 / 2.0, size.1 as f32 / 2.0);
+			human_pos *= SCALE;
+
+			let node_index_left = grid
+				.nodes
+				.iter()
+				.enumerate()
+				.filter(|(_i, &node)| node.y <= size.1 as f32 / 6.0)
+				.filter(|(_i, &node)| node.x <= (human_pos.x - 0.5 * SCALE))
+				.max_by_key(|(_i, &node)| node.x as i32)
+				.map(|(i, _)| i)
+				.unwrap();
+			let node_index_right = grid
+				.nodes
+				.iter()
+				.enumerate()
+				.filter(|(_i, &node)| node.y <= size.1 as f32 / 6.0)
+				.filter(|(_i, &node)| node.x >= (human_pos.x + 0.5 * SCALE))
+				.min_by_key(|(_i, &node)| node.x as i32)
+				.map(|(i, _)| i)
+				.unwrap();
+
+			(
+				Some(human_pos),
+				(node_index_left ..= node_index_right).collect()
+			)
+		} else {
+			(None, Vec::new())
+		};
+
 		Room {
 			_room_type: room_type,
 			size,
-			grid: Self::create_grid(size.0, size.1),
-			furnitures
+			grid,
+			furnitures,
+			human_pos,
+			human_nodes
 		}
 	}
 
+	pub fn get_human_information(&self) -> (Option<Vec2>, &Vec<usize>) {
+		(self.human_pos, &self.human_nodes)
+	}
+
 	fn random_size(room_type: &RoomType) -> (u8, u8) {
 		//Kitchen + Living Room 5-8
 		//Bath + sleepingroom 4-6
@@ -443,6 +486,24 @@ impl Room {
 			}
 		}
 
+		if human_layer {
+			if let Some(human_pos) = self.human_pos {
+				//draw_circle(human_pos, 0.5, RED, 20);
+				draw_sprite(
+					texture_id("human_house"),
+					human_pos,
+					WHITE,
+					ZLayer::Human.into(),
+					vec2(1.0, 2.0) * SCALE
+				);
+			}
+		}
+
+		/* Debug draw
+		for node_index in &self.human_nodes {
+			draw_circle(*self.grid.nodes.get(*node_index).unwrap(), 0.5, GREEN, ZLayer::Human.into());
+		}*/
+
 		self.grid.draw();
 	}
 }
diff --git a/src/activities/overworld/mod.rs b/src/activities/overworld/mod.rs
index 3ad9c12..a702a08 100644
--- a/src/activities/overworld/mod.rs
+++ b/src/activities/overworld/mod.rs
@@ -1,14 +1,30 @@
-use crate::{activities::Activity, game::ZLayer, State};
+use crate::{
+	activities::Activity,
+	assets::ASSETS,
+	game::{ZLayer, GHOST_DISCHARGE_RATE, GHOST_DISCHARGE_RATE_MOVEMENT},
+	State
+};
 use comfy::{
-	delta, draw_circle, draw_rect_outline, draw_sprite, error, info, is_key_down,
-	main_camera_mut, EngineContext, IVec2, KeyCode, Vec2, RED, WHITE
+	draw_rect_outline, draw_sprite, error, info, is_key_down, main_camera_mut,
+	play_sound_id, stop_sound_id, texture_id, vec2, EngineContext, IVec2, KeyCode, Vec2,
+	RED, WHITE
 };
 use std::time::Instant;
 use worldgen::MovementCost;
 
 pub mod worldgen;
 
-pub fn draw(state: &crate::State, _engine: &comfy::EngineContext<'_>) {
+pub fn setup(_state: &State, ctx: &EngineContext<'_>) {
+	ctx.load_texture_from_bytes(
+		"human_overworld",
+		include_bytes!(concat!(
+			env!("CARGO_MANIFEST_DIR"),
+			"/assets/entities/human_overworld.png"
+		))
+	);
+}
+
+pub fn draw(state: &State, _ctx: &EngineContext<'_>) {
 	for (coords, tile) in state.overworld.iter_tiles() {
 		for (i, texture) in tile.textures().iter().rev().enumerate() {
 			let i = i as i32;
@@ -24,12 +40,32 @@ pub fn draw(state: &crate::State, _engine: &comfy::EngineContext<'_>) {
 			}
 		}
 	}
-	draw_circle(state.ghost.overworld_pos, 0.5, RED, ZLayer::Ghost.into());
+
+	let mut ghost_pos = state.ghost.overworld_pos;
+	ghost_pos.y += 0.5;
+	draw_sprite(
+		texture_id("human_overworld"),
+		ghost_pos,
+		WHITE,
+		ZLayer::Ghost.into(),
+		vec2(1.0, 1.25)
+	);
 }
 
-fn update_move_player(state: &mut State, _ctx: &mut EngineContext<'_>) {
+fn update_move_player(state: &mut State, ctx: &mut EngineContext<'_>) {
 	let now = Instant::now();
 
+	if !state.overworld.sound_playing {
+		if let Some(house) = state.house_mut(ctx) {
+			if house.sound_playing {
+				stop_sound_id(ASSETS.music.mesmerizing_galaxy_loop);
+				house.sound_playing = false;
+			}
+		}
+		play_sound_id(ASSETS.music.galactic_rap_speedup);
+		state.overworld.sound_playing = true;
+	}
+
 	// Are there any pending position updates? If so, we ignore all user input and execute
 	// the pending updates.
 	if state.ghost.overworld_movement_pending != Vec2::ZERO {
@@ -177,9 +213,9 @@ pub fn update(state: &mut State, ctx: &mut EngineContext<'_>) {
 	// energie lost
 	{
 		let ghost = &mut state.ghost;
-		ghost.charge -= 70.0 * ctx.delta;
+		ghost.charge -= GHOST_DISCHARGE_RATE * ctx.delta;
 		if ghost.overworld_movement_pending != Vec2::ZERO {
-			ghost.charge -= 70.0 * ctx.delta;
+			ghost.charge -= GHOST_DISCHARGE_RATE_MOVEMENT * ctx.delta;
 		}
 	}
 
diff --git a/src/activities/overworld/worldgen.rs b/src/activities/overworld/worldgen.rs
index 83e9067..4739c4e 100644
--- a/src/activities/overworld/worldgen.rs
+++ b/src/activities/overworld/worldgen.rs
@@ -422,7 +422,9 @@ impl Chunk {
 
 #[derive(Debug, Default)]
 pub struct Overworld {
-	chunks: HashMap<IVec2, Chunk>
+	chunks: HashMap<IVec2, Chunk>,
+
+	pub sound_playing: bool
 }
 
 fn world_to_chunk_and_local_coords(world_coords: IVec2) -> (IVec2, UVec2) {
diff --git a/src/game.rs b/src/game.rs
index 5c481b3..6352858 100644
--- a/src/game.rs
+++ b/src/game.rs
@@ -75,8 +75,7 @@ pub enum ZLayer {
 	MapMax = -1,
 	Human = 0,
 	Ghost = 1,
-	UI = 100,
-	GameOver = 1000
+	UI = 100
 }
 
 impl From<ZLayer> for i32 {
@@ -102,23 +101,76 @@ impl Add<i32> for ZLayer {
 	}
 }
 
-pub fn setup(_state: &mut State, ctx: &mut EngineContext<'_>) {
+pub fn setup(state: &mut State, ctx: &mut EngineContext<'_>) {
 	Assets::load(ctx);
 
+	overworld::setup(state, ctx);
 	//house::setup(state, ctx);
+
+	ctx.load_texture_from_bytes(
+		"ghost_house",
+		include_bytes!(concat!(
+			env!("CARGO_MANIFEST_DIR"),
+			"/assets/entities/ghost.png"
+		))
+	);
+
+	ctx.load_texture_from_bytes(
+		"human_house",
+		include_bytes!(concat!(
+			env!("CARGO_MANIFEST_DIR"),
+			"/assets/entities/human_captured.png"
+		))
+	);
 }
 
-pub fn update(state: &mut State, engine: &mut EngineContext<'_>) {
-	if state.ghost.charge > 0.0 {
-		state.score += engine.delta * 10.0;
+/// The amount of energy a ghost consumes idle.
+pub const GHOST_DISCHARGE_RATE: f32 = 70.0;
+/// The amount of energy additionally consumed by a moving ghost.
+pub const GHOST_DISCHARGE_RATE_MOVEMENT: f32 = 70.0;
+/// The amount of energy a house consumes idle.
+pub const HOUSE_DISCHARGE_RATE: f32 = 30.0;
+/// The amount of energy a ghost can charge when inside a house.
+pub const GHOST_CHARGE_RATE: f32 = 200.0;
+
+pub fn update(state: &mut State, ctx: &mut EngineContext<'_>) {
+	// Update the score. It's based on time.
+	state.score += ctx.delta * 10.0;
+
+	// Update the currently active activity.
+	match state.activity {
+		Activity::House(_) => house::update(state, ctx),
+		Activity::Overworld => overworld::update(state, ctx)
+	}
+
+	// We update the charge of houses here - the charge will always decrease, even if the
+	// house is not the current activity.
+	for (house_pos, house) in &mut state.houses {
+		house.charge -= ctx.delta * HOUSE_DISCHARGE_RATE;
+
 		match state.activity {
-			Activity::House(_) => house::update(state, engine),
-			Activity::Overworld => overworld::update(state, engine)
+			Activity::House(pos) if *house_pos == pos => {
+				// The ghost is currently inside the house. Increase its discarge rate.
+				house.charge -= ctx.delta * GHOST_DISCHARGE_RATE;
+				if house.charge < 0.0 {
+					state.ghost.charge += house.charge;
+					house.charge = 0.0;
+				}
+
+				// And possibly also charge the ghost when inside a house.
+				if state.ghost.charge < state.ghost.max_charge {
+					let charge_transfer = (ctx.delta * GHOST_CHARGE_RATE)
+						.min(state.ghost.max_charge - state.ghost.charge)
+						.min(house.charge);
+					state.ghost.charge += charge_transfer;
+					house.charge -= charge_transfer;
+				}
+			},
+			_ => {}
 		}
 	}
-	{
-		crate::game_over::update(state, engine);
-	}
+
+	// Make sure the ghost's charge never drops below 0.
 	state.ghost.charge = state.ghost.charge.max(0.0);
 }
 
@@ -128,7 +180,4 @@ pub fn draw(state: &State, engine: &EngineContext<'_>) {
 		Activity::Overworld => overworld::draw(state, engine)
 	}
 	crate::ui::draw(state, engine);
-	if state.ghost.charge <= 0.0 {
-		crate::game_over::draw(state, engine);
-	}
 }
diff --git a/src/main.rs b/src/main.rs
index a5b9b6d..ec4ea4e 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -59,10 +59,12 @@ impl State {
 		self.houses.get(&self.get_house_pos()?)
 	}
 
-	fn house_mut(&mut self, ctx: &mut EngineContext<'_>) -> &mut HouseState {
-		self.houses
-			.entry(self.get_house_pos().unwrap())
-			.or_insert_with(|| HouseState::generate_new_house(ctx))
+	fn house_mut(&mut self, ctx: &mut EngineContext<'_>) -> Option<&mut HouseState> {
+		Some(
+			self.houses
+				.entry(self.get_house_pos()?)
+				.or_insert_with(|| HouseState::generate_new_house(ctx))
+		)
 	}
 }
 
diff --git a/src/ui.rs b/src/ui.rs
index 1f31ada..4a22853 100644
--- a/src/ui.rs
+++ b/src/ui.rs
@@ -1,41 +1,61 @@
 use crate::{game::ZLayer, State};
 use comfy::{
 	draw_rect, draw_rect_outline, egui, screen_height, screen_to_world, screen_width,
-	EngineContext, Vec2, BLACK, BLUE, RED, WHITE
+	vec2, Color, EngineContext, Vec2, BLACK, BLUE, PURPLE, RED, WHITE
 };
 use egui::widget_text::RichText;
 
-pub fn draw_batterie(state: &State, _engine: &EngineContext<'_>) {
-	// seperate fill state into smaller section for better readability
-	let section_count = 5;
-	let mut start_positon = screen_to_world(Vec2::new(screen_width(), screen_height()));
+// seperate fill state into smaller section for better readability
+const BATTERY_SECTION_COUNT: u8 = 5;
+const BATTERY_SECTION_WIDTH: f32 = 1.0;
+const BATTERY_SECTION_HEIGHT: f32 = 0.5;
+
+fn draw_battery(mut start_position: Vec2, charge: f32, max_charge: f32, color: Color) {
 	// section size in world codinates
-	let section_size = Vec2::new(0.5, 0.25);
-	start_positon.x -= 0.5 * section_size.x + 0.5 * section_size.y;
-	start_positon.y += 0.5 * section_size.y + 0.5 * section_size.y;
+	let section_size = vec2(BATTERY_SECTION_WIDTH, BATTERY_SECTION_HEIGHT);
+	start_position.x -= 0.5 * section_size.x + 0.5 * section_size.y;
+	start_position.y += 0.5 * section_size.y + 0.5 * section_size.y;
 	// draw fill level
 	{
-		let ghost = &state.ghost;
-		let percent = ghost.charge / ghost.max_charge;
+		let percent = charge / max_charge;
 		let mut size = section_size;
-		size.y = section_size.y * section_count as f32;
-		let mut position = start_positon;
+		size.y = section_size.y * BATTERY_SECTION_COUNT as f32;
+		let mut position = start_position;
 		position.y += 0.5 * -section_size.y + 0.5 * size.y;
 		draw_rect(position, size, BLACK, ZLayer::UI.into());
 		size.y *= percent;
-		let mut position = start_positon;
+		let mut position = start_position;
 		position.y += 0.5 * -section_size.y + 0.5 * size.y;
 		draw_rect(position, size, BLUE, ZLayer::UI + 1);
 	}
 	// draw sections
-	for i in 0 .. section_count {
-		let mut position = start_positon;
+	for i in 0 .. BATTERY_SECTION_COUNT {
+		let mut position = start_position;
 		position.y += i as f32 * section_size.y;
-		draw_rect_outline(position, section_size, 0.1, RED, ZLayer::UI + 2);
+		draw_rect_outline(position, section_size, 0.1, color, ZLayer::UI + 2);
 	}
 }
 
-pub fn draw_highscore(state: &State, _engine: &EngineContext<'_>) {
+pub fn draw_ghost_battery(state: &State) {
+	let start_position = screen_to_world(Vec2::new(screen_width(), screen_height()));
+	draw_battery(
+		start_position,
+		state.ghost.charge,
+		state.ghost.max_charge,
+		RED
+	);
+}
+
+pub fn draw_house_battery(state: &State) {
+	let Some(house) = state.house() else {
+		return;
+	};
+	let mut start_position = screen_to_world(Vec2::new(screen_width(), screen_height()));
+	start_position.x -= 2.0 * BATTERY_SECTION_WIDTH;
+	draw_battery(start_position, house.charge, house.max_charge, PURPLE)
+}
+
+pub fn draw_highscore(state: &State) {
 	egui::Area::new("score")
 		.anchor(egui::Align2::RIGHT_TOP, egui::vec2(0.0, 0.0))
 		.show(egui(), |ui| {
@@ -49,7 +69,8 @@ pub fn draw_highscore(state: &State, _engine: &EngineContext<'_>) {
 		});
 }
 
-pub fn draw(state: &State, engine: &EngineContext<'_>) {
-	draw_batterie(state, engine);
-	draw_highscore(state, engine);
+pub fn draw(state: &State, _ctx: &EngineContext<'_>) {
+	draw_ghost_battery(state);
+	draw_house_battery(state);
+	draw_highscore(state);
 }