The player controls a kitten-like character who must venture through side-scrolling platform levels similar to Super Mario Bros.. The game consists of four levels riddled with traps designed to trick the player, and abuse their previous knowledge of Super Mario Bros. gameplay, including normal-looking ground tiles that fall away into pits, blocks that sprout spikes when touched, enemies that spawn nearly on top of the character, deadly background scenery, and a Mario-style flagpole that kills the character in two different ways.