Here, you can play a game like soccer against the computer.
Instead of a soccer ball, there's a positive charge ejected from the blue/green gun.
Instead of kicking the ball with their feet, the players guide the charge using their own positive and negative charges.
You control the purple Plus and the purple Minus. The computer controls the Blue players.
If the charge ends up in the Purple Goal , you get a point.
If the charge ends up in the Blue Goal , the computer gets a point.