Use W and S to change the size of the ball. Use space to stamp the ball. Use the arrow keys to move the ball around. Click 1 for party mode. Click 2 for pen down, and 3 for pen up Use A to change the color of the ball and D for the pen color. Click R to reset. Click 4 to increase the size of the pen and 5 to shrink it down. 1 activates clone in party mode! Click c to clone.
Pen extension.