Spaceball is a sport that appears to be identical to baseball. The positions instead of being left field, center field, and right field are: left sky, center sky, and right sky. In places such as Orbit City it is casually played in mid-air with the use of anti-gravity belts.
- In the episode "Uniblab" Uniblab mentions the scores of spaceball games. The teams he mentions are Yankees, L.A., & Detroit.
- In the episode "A Visit from Grandpa" Elroy and his great-grandfather play spaceball.
- In the episode "Team Spirit" Cogswell Cogs robot spaceball and George Jetson as pitcher, play against W.C. Cogswell's robots at the professional stadium in town.