Press the flag and the cats will start flying!! Press space to reset your Collisions With Sprite One Variable. to reset whole game, press red stop button next to green flag then space. It will fully reboot. (in the original game the collisions with sprite one didnt reset when you pressed the green flag so i fixed that) Leave this on for like an hour or something if you want and see how much collisions there are. i did that and it was a lot lol.
Thanks to @enchantedenchilada05 I changed more than the background