Role in Def Jam Duo as "Big" Sean Edit
In Def Jam Duo, Sean plays an intricate part of many story lines.First appearing in the Twenty88 story as Jhené Aiko is seen escaping the raid on New York by the terrorists. During this time Big Sean is taken by the terrorists and shot repeatedly in the chest while Jhene escapes the site with the help of Ab-Soul. Later it is revealed that Sean reawakens unaffected by the sererve bullet wounds as it's revealed that Sean's been possessed by a powerful demon he sold his soul to, to become famous. Wearing out the demon's powers with the healing from the injuries leaves Big Sean up vulnerable before discovering an arms deal is going down headed by (Chris Brown as) Breezy, which soon takes a turn for the worst, Sean ends up helping Breezy as they then agree to team up during the Def Jam Takeover dubbed the East Coast Apocalypse. Although it's unknown the extents of the demon's powers it can be assumed that it acts similar to Busta Rhymes' powers as "The Dragon" or Eminem's as Slim Shady.
Role in Def Jam Control Edit
Big Sean plays a very different role in Def Jam Control, although it can be assumed that the demon led Sean to joining the Rap Illuminati. Big Sean is seen as one of The Chairmen of Control, with Jay Electronica and King Kunta, and is mainly fought by Playa three times throughout the campaign, once after the beating of The Conglomerate, once after beating The Maybach Crew and once during the game's finale, Overtime Mode.