- During Ultimate War, Beast complains about the malfunctioning Danger Room in the hideaway, which made him fight Hassidic Rabbis instead of ninja. Becomes a Brick Joke when the Ultimates attack, and Beast lures them into the danger room, where they're attacked by katana-wielding Rabbis.
- In Issue 24 of Ultimate Comics: X-men, the Sentient Seed of Utopia causes itself to wilt in the presence of Warpath. His response?
Warpath: Well, screw you too, Mother Nature.
- Mr Sinister introduces Xavier to his most dangerous enemy: Stairs.◊