Gundam Memories is a hack and slash/3rd person shooter game that takes place entirely on a zero gravity plane, allowing players to move about freely in any direction, similar to Mobile Suit Gundam: Encounters In Space, though in a somewhat limited fashion. Before battle, the player can assemble a squad of three and can switch between members at will with those on standby recovering health.

The game's story mode features Gundam SEED Destiny, 00 and Unicorn up to the third episode and cutscenes are told via text with still images of the characters.