diff --git a/dist/resources/sprite/entity/simple_circle.png b/dist/resources/sprite/entity/simple_circle.png
new file mode 100644
index 0000000..71cdadb
Binary files /dev/null and b/dist/resources/sprite/entity/simple_circle.png differ
diff --git a/src/controller/gamecontext.ts b/src/controller/gamecontext.ts
index 923727a..cda47a5 100644
--- a/src/controller/gamecontext.ts
+++ b/src/controller/gamecontext.ts
@@ -14,7 +14,7 @@ import { vec2 } from 'gl-matrix';
 export class GameContext {
 	public static async load(renderer: Renderer): Promise<GameContext> {
 		const mapView = this.loadMap(renderer);
-		const entity = loadSimpleEntity(renderer, 'simple_square');
+		const entity = loadSimpleEntity(renderer, 'simple_circle');
 
 		return new GameContext(
 			renderer,