X-Men: Evolution (2000)

Mainstream - S3-E3

Continuity mistake: When Kitty goes to get a midnight snack, her hair is down. But a few shots later, her hair is up in a ponytail.

Phoebe

Day Of Reckoning (2) - S2-E17

Revealing mistake: When Wanda traps Magneto in the force field thing, for one shot, Magneto is missing a sleeve on one arm, then it comes back a shot later.

Day of Recovery - S3-E1

Continuity mistake: When Nightcrawler teleports into the police car, the seat belt is buckled around him. How did the seat belt buckle itself around him? The police wouldn't have buckled the seat belt for no reason.

Phoebe

The Stuff of Heroes - S3-E2

Trivia: The store that Rogue and Wolverine are in when they are ambushed by the soldiers is the same store as the one that Wolverine showed up at in the first episode. The inside has changed, but the building and the scenery outside is still the same.

Phoebe

Retreat - S2-E12

Trivia: When one of the Bigfoot hunters talks about his whistle, he says to go to the Bigfoot shop and ask for Mulder. Mulder is the Agent from The X-Files (X-Files music plays in the background when he says this).

Piemanmoo

Trivia: The design of Blob is based on the character Billy Bob from the film Varsity Blues.

Phaneron ★

Col. Nick Fury: I can't let her go.
Wolverine: You can... and you will.

Jean Grey: You've been given a wonderful gift.
Kitty Pryde: I don't have a gift, just a curse.
Jean Grey: Only if you let it be.

Rogue: My power is your power and I can take more than one.