It's Science Jim's famous shoot the monkey/gravity problem! But with Scratch the Cat! Just click anywhere on the screen to start the sequence(I'm not sure why there's a button). Fiddle with the Gravity slider to experiment with different gravities(duh). You can also click and drag the cat, but only if you download it. I apologize if the bullet sometimes fails to hit the cat. IT IS ENTIRELY MY FAULT! DON'T BLAME SCIENCE JIM!
