I remember making a game like this in my Design 1 class with a friend of mine using GameMaker. The game was fun. I like playing games like this online because It's simple and It can be fun to challenge yourself to get a high score. Does the game have any sound? I don't know if It's just my computer, but I put the sound all the way up and I can't hear anything. Besides that, I really enjoyed your game and watching the cats jump in from the side.