If you think it is too slow, just wait. It will get faster! Also, try hitting that wierd thing that will start appearing after a while... By the way, the bug is fixed! It turned out that after bouncing off of the bottom of the screen, the direction of the ball is 7*10^-15 instead of zero (only online though). Strange... P.S. This is my first scratch project, so feel free to give suggestions on how to improve it!