Pararena

Pararena is an action computer game for the Apple Macintosh, originally released as shareware in 1990 by john calhoun. It is a mouse-controlled ball game where two players compete on hoverboards in a parabolic arena with two "goals" on the sides. The object is to score points by getting the ball into the other player's goal. Players tossed out of the arena will simply respawn after a few seconds, but fouls are issued for letting the ball go out of bounds. There are multiple game types with different victory conditions.