Turn-based RPG where you build a four-member party from three classes—humans, mutants, and monsters—each with distinct progression systems. Humans equip weapons and armor. Mutants gain spells randomly after battles. Monsters transform by eating defeated enemies' meat, shifting forms based on what they consume. You climb a central tower connecting four stacked worlds, each guarded by a creature from the Chinese zodiac holding a colored sphere. Combat uses a durability system: weapons and spells have limited uses before breaking. The tower structure means you're constantly moving between fantasy settings—ocean realm, sky kingdom, ruined future—rather than exploring one large map. Battery save lets you stop mid-climb. Short for a Game Boy RPG but dense with class experimentation.
