A timed exclusive in regards to any given game is as good as the game being exclusive. In regards to Ninja Gaiden 2 on PS3, I do not see it surpassing the sales of Ninja Gaiden 2 released a year earlier on Xbox 360.
Bioshock has sold 2 million on X360 and released 15 months later on PS3 and the game barely sells one third of what it has sold on XBox 360.







