Uchuu Nin Tanaka Tarou de RPG Tsukuru GB2 is a Japanese role-playing game (JRPG) creator for the Game Boy Color. Unlike traditional JRPGs, this title focuses on allowing players to design and create their own RPG adventures.  The gameplay would involve using various tools and options to build maps, characters, storylines, and battles within the game's framework.  It offered a unique creative outlet for players interested in world-building and game design.  Further information about the specific mechanics and features is limited, but it clearly caters to Japanese players with its unique title and creative RPG building features.

Uchuu Nin Tanaka Tarou de RPG Tsukuru GB2 (Japan)

Tweety's High-Flying Adventure (USA)