Sea-Doo HydroCross is a racing video game developed by Vicarious Visions for the Game Boy Color. Utilizing a shared engine with three other titles, the game allows players to compete on personal watercraft in various aquatic environments. Though completed, only HydroCross was released publicly, while the others were later revealed in the 2020 lotcheck leaks.
Sea-Doo Hydrocross is one of four games sharing the same engine (the others being Polaris SnoCross, Carnivalé, and VR Sports: Powerboat Racing) that were made by Vicarious Visions for Vatical Entertainment. While all four were finished, only one managed to make it out the door; the others eventually surfaced in the September 2020 lotcheck leaks.