what xbox 360 games are rare?
['Dead Space Ultra Limited Edition.', 'Fallout 3 Survival Edition.', "Mass Effect Collector's Edition.", "Assassin's Creed II The Master Assassin's Edition.", 'Tales of Vesperia Special Edition.', 'Halo 3 Legendary Edition.', "Batman: Arkham Asylum Collector's Edition.", 'Call of Duty: Modern Warfare 2 Prestige Edition.']