WinBack 2: Project Poseidon - Bonus multiplayer characters

WinBack 2: Project Poseidon - Bonus multiplayer characters
Bonus multiplayer characters:
Complete all missions with an "A" rank on all difficulty settings to unlock bonus characters in Multiplayer mode.

Completion bonuses:
Complete the game to unlock the Shadow Stalker difficulty setting and "Extra Options" selection, which allows all BGMs and movies from the game to be played.