One Slime is a one player version of Slime Volleyball written by Daniel Wedge (Wedgey) in 2001. The first player to win six points is the winner, if the human player wins, they advance to the next level. A points scoring system is used based on how quickly each level is completed, and how convincing the player is in winning (ie, 6-0 win, points won by serving aces, hitting winners etc).