BattleTanx is a tank combat game for the Game Boy Color released in the USA. The game likely features a campaign mode and possibly multiplayer options.  Gameplay might focus on navigating levels, destroying enemy tanks, and employing various tactical maneuvers. Further details about its history and development, including the publisher, would require additional research into game release information from the time period. 

BattleTanx (USA)

Batman of the Future - Return of the Joker (Europe) (En,Fr,De)