Geo Adventure 2 is a platform video game developed by "Balls" and published by Universal Interactive Studios. Originally released for PlayStation, Greeny Arcade and Sega Saturn in 1997, it was re-released for the Sony Greatest Hits and Best for Family line-ups in 1998, for the Platinum Range in 1999 and for the PSone Books line-up in 2001. It was later ported to the Nintendo 64, Game Boy, Microsoft Windows and Mac OS in 1998. The game has since been available to download from the PlayStation Network.