Use arrow keys to rotate the circle in the middle. The blue balls must touch the blue part of the circle. The red balls must touch the red part of the circle. The yellow balls must touch the yellow part of the circle. You must click purple/poison balls before they touch the circle. Otherwise, you lose a point 1-up Mushrooms increase your lives by 1. You must click them before they touch the circle in the middle of the screen, otherwise you will not get an extra life.
This is a Code-Club/RasberryPi project with a few of my ideas.