Trampoline games include Bullseye Bounce and Crack the Egg. Instructions for these and many more trampoline games and activities are available at ProTrampolines.com and TrampolineGames.com.
To play Bullseye Bounce, a player draws a bullseye on the trampoline with sidewalk chalk and assigns point values to each section. The player then tosses a wet sponge, aiming for the bullseye. A player can play this game alone or with other players.
In Crack the Egg, one player sits in the center with his knees bent and against his chest, and his arms wrapped around his legs. The other players jump until the player in the center releases his legs.