Metal Gear Solid 4 Almost Made Its Way to Xbox 360.

Metal Gear Solid 4: Guns of the Patriots was once "running beautifully and smoothly" on Xbox 360, according to the game's assistant producer Ryan Payton. There was no exclusivity deal to ensure the game was only released on PS3, and the decision instead came down to the choice of disc format used in Microsoft's console. Bringing Metal Gear Solid 4 to Xbox 360 would have required putting the game on numerous discs, something Konami wasn't willing to do. Metal Gear Solid 4 has never been re-released on any other format, meaning it remains a PS3 exclusive to this day.