User blog comment:Kogath/Monster Hunter Generations Ultimate Discussion/@comment-6050823-20161101223944/@comment-6050823-20161104023405

@Rathalosaurus rioreurensis

Actually, Crimson Diablos is indeed canon believe it or not. It was first mentioned in one of the Hunter's Encyclopedias (Can't recall which one) before appearing in that comic special. If that wasn't ironic enough, Massacre Demon Diablos actually turns crimson/reddish, well the blue blood at least, in Rage Mode.