Curveball is a cool math game that challenges your spatial reasoning and reflexes. The game is based on the classic arcade game Pong, but with a twist: you have to control the angle and direction of the ball with your mouse. The game has three modes: easy, medium and hard. In each mode, you have to score as many points as possible by hitting the ball past your opponent's paddle. The game gets harder as you progress, with faster balls, more obstacles and smarter opponents. Curveball is a fun and addictive way to practice your math skills and improve your hand-eye coordination.