I made a little game called Leupin's Paint Problem. In it, a circle named Leupin has to charge at “Paint Rectangles” in order to get rid of them.

One of my goals with this game was to make it work with as many computers as possible. Thus, I managed to program the entire game using only four sprites. The game also runs rather smoothly.

Enjoy!

http://scratch.mit.edu/projects/24178390