Space Cat is a 2D arcade-style platformer where the player(s) must collect as much gems, coins and diamonds as possible while surviving the asteroid terrain, which is constantly being destroyed by missiles, and regenerated by UFOs. You can customize the game’s difficulty by toggling individual hazards, and your character's movement options.

There is also a side-scrolling story-based Adventure Mode, a multiplayer Battle Mode, a time trial-based Boss Rush mode, and multiplayer Minigames. In all of these modes, you can collect special coins to unlock hats for your cat to wear.