South Park

Game Boy Color version

A Game Boy Color version was intended to be released alongside the N64 version. It was fully completed and rated by the ESRB, but was cancelled when South Park creators Trey Parker and Matt Stone felt the game wouldn't be appropriate for the kid-friendly Game Boy Color. The game's source code was then utilized in Maya the Bee and Mary Kate and Ashley Get a Clue, also Acclaim titles.

Beta version

The beta version for South Park was known as Deeply Impacted internally. The beta version included a different story, where it involved characters being taken by the Visitor aliens from the show, such as Cartman's mom. Skuzzlebutt, a character prominently seen in the episode "Volcano", was intended as a boss. Multiplayer was also very different, and included several modes not seen in the final game, such as capture the flag, grudge match and "Kick the Baby" modes. The PS1 version wasn't intended as a FPS, but instead a Lost Vikings-style game.

Sequel

A sequel was announced by Acclaim to be released for the N64 in 2000, but never saw the light of day.