Galaga '91 is an updated entry in the classic Galaga series. Released on the Sega Game Gear, it retained core gameplay but likely included new features, levels, enemies or visual enhancements suitable for the platform. Specific details on what differentiated it from previous Galaga iterations depend on its gameplay analysis and comparisons to its arcade counterparts.

Galaga '91 (Japan)

G-LOC Air Battle (Japan)