diff --git a/src/components/Turtle.ts b/src/components/Turtle.ts
index bc379e8..1a0c554 100644
--- a/src/components/Turtle.ts
+++ b/src/components/Turtle.ts
@@ -34,7 +34,7 @@ export class Turtle extends Button {
 		this.spriteSize = 200;
 		this.sprite = this.scene.physics.add.sprite(0, 0, "turtle_waiting");
 		this.sprite.setGravityY(constants.physics.gravity);
-		this.sprite.setCollideWorldBounds(true)
+		this.sprite.setCollideWorldBounds(true, 1, 1, true);
 		this.sprite.setBounceY(0.4);
 		this.sprite.setOrigin(0.5, 1.0);
 		this.sprite.y += this.spriteSize / 2;
diff --git a/src/scenes/OverworldState.ts b/src/scenes/OverworldState.ts
index aabfbbc..ee4b4de 100644
--- a/src/scenes/OverworldState.ts
+++ b/src/scenes/OverworldState.ts
@@ -64,7 +64,11 @@ export class OverworldState extends Phaser.GameObjects.Container {
 
 		this.scene.physics.add.collider(turtle.sprite, this.trampoline.sprite, () => {
 			turtle.sprite.setVelocityY(-800 + (Math.random()*100-50));
-		})
+		});
+
+		this.scene.physics.world.on('worldbounds', (body: any) => {
+			// world collision event
+        });
 
 		turtle.on("action", () => {
 			turtle.doABarrelRoll();