The instructions are in the game if you click "How To Play" in the starting screen, but I'll explain them here anyway. :) NOTE: It's best when you play this game with a fairly high volume. Hold the space bar for the cosmic hamster to walk towards the candy bowl. If you hear footsteps or see the dresser shaking, stop holding it to turn invisible -- that way they can't see you! Try to take as many candy as you can. It's game over once the timer runs out or when you get caught by the human or the cat.
