Click the green flag, use your mouse to move the hammer and space to whack the cat. You have 60 seconds to get as many points as you can. Don't worry, no actual Scratch Cats were hurt in this game!
Random made me think of a jack in the box, and that made me think of Whack-a-Mole, and that lead me here. I'm not sure if I intended to end up with a full game, but here it is. I always forget about the timer function, it came in handy here.