Moeru! Oniisan is an NES game released only in Japan. Further details on the game's genre, plot, and gameplay are scarce, making it difficult to provide a comprehensive introduction. The game's history and development are largely undocumented. Without more information, it is impossible to describe the gameplay, mechanics, or plot.  The developer and publisher are currently unknown.

Moeru! Oniisan (Japan)

Moero!! Pro Yakyuu (Japan)