The PS3 version of Mortal Kombat has Kratos as an exclusive character, but the Xbox 360 version has no such similar bonus. As NetherRealm Studio head Ed Boon implies, this was either because Microsoft didn’t ante up for such a cameo, or the deal with Sony scuppered any hopes of a similar one with Microsoft.
“I’m not allowed to talk too much about it, but I can tell you we certainly wanted to do an exclusive for 360, but that’s all I can say. It was not a decision we made where we said, ‘Oh, let’s not do one for the 360,'” said Boon. “Anybody who’s really knowledgeable about the Xbox video games, the big titles, names like Master Chief from Halo, Marcus Fenix from Gears of War, and any other Xbox exclusive title, is going to come up in a conversation in talking about it. So clearly we’ve discussed it.”