This is something I made for school. You can press the 1, 2, 3, 4, 5, 6, 7, 8, and 9 keys to make different shapes. If you go inside and press the rainbows button, you might want to put in turbo mode. (Shift click the green flag.) Space or green flag to reset. (You can change the size of the shapes if you go inside.) :D
This was for school... So yeah. I drew the sprite.