Board Thread:Mortal Kombat X/@comment-10957038-20150417233526/@comment-21005855-20150724170548

Good point. Besides, a non-canon game still has to be approved by the developers and creators of the lore. Even if we're talking about Shaolin Monks (which isn't a game that Raiden fights the final boss), it's still a part of Mortal Kombat in general.