Taiyou no Yuusha - Fighbird GB (Japan) is a Japanese Game Boy title. The title suggests it's likely an action or adventure game, possibly centered around a heroic figure ("Yuusha") and featuring bird-like elements ("Fighbird").  More in-depth research into Japanese gaming history would be needed to understand its gameplay and narrative specifics.  The publisher and developer behind this title likely remain largely undocumented unless archived materials exist.

Taiyou no Yuusha - Fighbird GB (Japan)

Taito Chase H.Q. (Japan)