Continuity mistake: When the X-mansion is shown at the end of the episode, the landscaping around it is different than what was shown early in the episode. When the mansion was first shown, there is a shrub in the shape of a circle on the lawn across from the mansion, but at the end of the episode, the circle-shaped shrub has turned into some bushes. The bushes and trees around the mansion are also different looking and at the far side of the mansion the shrubs have grown taller. Additionally, when Wolverine is walking away from the mansion at the end, a hedge-wall has appeared next to the mansion. It's actually common for the landscaping outside the mansion to vary drastically from episode to episode. This is the first time I noticed it changing within the same episode. (00:04:25 - 00:19:25)
Revealing mistake: When Rogue is shown tearing off the first portion of the submarine's hull, her feet are missing. (00:17:55)
Continuity mistake: When Omega Red is wrapping the metal around the Storm, the portion of the metal that is protruding from Omega Red's grasp alternates between being brown and white in the same shot. (00:16:30)
Continuity mistake: The mini-sub that Storm docked onto the hull of the nuclear submarine disappears and reappears throughout the rest of the episode. (00:07:20 - 00:17:45)
Continuity mistake: The number of "rows" on the purple devices on Omega Red's face varies throughout the episode, sometimes even changing quantity in the same shot.
Factual error: When Omega Red is shown a photograph of Hawaii, the island of Niihau is missing, and Kauai is too close to Oahu. (00:03:15)
