A South Park videogame was planned for the GameBoy Color and was in development at Acclaim studios in 1998, but sadly the project was soon cancelled by the shows creators, Trey Parker and Matt Stone due to them feeling that the game isn’t right for the Game Boy Color as children were the main demographic for the system. There are not many info on this game and only a single screenshot was published in an old Nintendo Power magazine (issue 114). The prototype cartridge now belongs to Trey and Matt, commemorating the very first South Park game ever created.
It seems that after the South Park game was cancelled Acclaim didn’t want all their investment in the project to go to waste so it was changed to Maya the Bee and published in Europe. After a little more tweaking it also became the New Adventures of Mary Kate & Ashley and published in the US. If you check videos of these 2 games, you can see that the HUD is basically the same, the platforms and the ladders are similar
If you worked on this game and have some more info or screens on the project, please let us know!
Videos from “Mary Kate & Ashley” for the GBC: