Sure! Here's a simple game about a guy running away from a cat where the guy has guns:
In this game, the player controls a blue character who can run to the right by pressing the arrow key. A cat (orange) continuously moves towards the character. The player can fire bullets (red) by pressing the spacebar, and if a bullet hits the cat, the collision is registered. The game runs in a continuous loop using the `requestAnimationFrame` method.