Slamball is full-contact basketball, with trampolines. Points are scored by playing the ball through the net, as in basketball, though the point-scoring rules are modified. The main differences from the parent sport is the court; below the padded basketball rim and backboard are four trampolines set into the floor which serve to propel players to great heights for slam dunks. The rules also permit some physical contact between the members of the four-player teams.

Professional SlamBall games were aired on television by Spike TV for two seasons in 2002 - 2003, and the POWERade SlamBall Challenge was aired on CSTV in 2007. SlamBall returned in August 2008Hoops Hybrid Being Molded Into a League - The New York Times, airing on Versus and CBS. The 2008 SlamBall season aired at one point on weekends on Cartoon Network.
Slamball is now showing on One HD in Australia during 2009.