Dead Rising 3 - Metacritic score of 78 on 34 critics reviews

[S.T.A.G.E.]

Wright said:

Do you understand Microsoft never payed to keep Dead Rising exclusive, (taking it away, as you put it) right? This theory of yours can apply to other games, but not to Dead Rising.

Ok, please explain why when I had the 360 before the original Dead Rising was 360 exclusive and the PS3 never got it.