O for 1 player. P for 2 player. L for adding to the mouse's speed(hold it). K for taking away from the mouse's speed(hold it). N for changing the mouse's character to a mouse. M for changing the mouse's character to a fish. Y for adding to the cat's speed(hold it). T for taking away from the cat's speed(hold it). F for changing the cat's character to a cat. G for changing the cat's character to a lion. Mouse pointer for controlling the mouse in 1 player. Arrow keys for controlling the mouse in 2 player. W,A,S,D for controlling the cat in 2 player. Space for stopping and hiding the characters. 1 for revealing and starting them on 1 player. 2 for revealing and starting them on 2 player. Z for changing the background to grass. X for changing the background to snow. I know this is too many controls.
This project was from my head.