- Cowboy BeBop at His Computer: In predictive programming Conspiracy Theories, issue #3 has been referred to as an issue of Spider-Man due to a guest appearance by Spider-Man.
- Executive Meddling: Marvel initially defended the Diana, Princess of Wales plot from Vol. 2, then got cold feet when it was too late to do anything but hastily recolour and rename the character.
- Follow the Leader: Part of the reason why the Externals never really took off is how, aside from Gideon, most of them were derivative of other, more popular characters in appearance. As mentioned above, Absalom was physically interchangeable with Tyler Dayspring, better known as the villain Genesis. Saul had a decent background as a Mongolian warlord who'd had the bad luck to cross paths with a younger Apocalypse, but his physical appearance in the modern day was an awful Fu Manchu stereotype. And Candra was more or less a blonde Selene, just with a taste for red rather than black in her wardrobe.
- I Knew It!: With his bright pink skin tone, knowledge of advanced sentinel technology, and predisposed disdain for mutants, many people assumed Bastion was the reincarnated form of Nimrod well before his background was revealed, and they were right. Technically, though, he's a fusion of nimrod and Master Mold.
- Name's the Same: In X-Force #2, Garrison Kane introduces himself as Weapon X. Deadpool asks if that moniker isn't already trademarked.
- Technology Marches On: Shatterstar demonstrates advanced mental capability by flipping through television channels rapidly. This ignores the delay between changing channels, and would look like childish behavior.
- Unintentional Period Piece: Plenty of 90's references, including a Bart Simpson poster, Batman: The Animated Series on TV, and the World Trade Center still standing after the 1993 bombing.
Trivia / X-Force