Artificial Sun stage - Successfully complete story mode with Moai to unlock the Artificial Sun stage.
Devil Orchid stage - Successfully complete story mode with Manjimaru to unlock the Devil Orchid stage.
Floating Continent stage - Successfully complete story mode with Bimbougami to unlock the Floating Continent stage.
Oil Rig stage - Successfully complete story mode with Solid Snake to unlock the Oil Rig stage.
Play as Asuka - Successfully complete story mode with a character from a Takara game to unlock Asuka.
Play as Bimbokami - Successfully complete story mode with all characters from Hudson games, including the bonus character Manjimaru to unlock Bimbokami.
Play as Manjimaru - Successfully complete story mode with a character from a Hudson game to unlock Manjimaru.
Play as Megatron - Successfully complete story mode with all characters from Takara games, including the bonus character Asuka to unlock Megatron.
Play as Moa - Successfully complete story mode with all characters from Konami games, including the bonus character Solid Snake to unlock Moa.
Play as Solid Snake - Successfully complete story mode with a character from a Konami game to unlock Solid Snake.
Tree House stage - Successfully complete story mode with Megatron to unlock the Tree House stage.