Clusterball

Clusterball is a 2000 video game featuring futuristic sport gameplay created by Daydream Software. In Clusterball the player must collect as many balls as they can from the playing field then fly them through a ring in the center of the stage to collect points. Various weapons and power ups are strewn around the stages, enabling players to steal their opponents' balls or invert the controls of the other player, making movement much more difficult.

The balls lie on magnetic ramps and the aircraft must somehow slide on these ramps to collect the balls. As the player tows more and more balls, which create a tail behind the aircraft, the aircraft becomes gradually heavier, therefore more vulnerable to enemy attacks.

A sequel to Clusterball was released only on iPhone.