Continuity mistake: When Lemmy falls down from the window and running away from Bowser with Iggy, Iggy's face turns orange. Then later, it turns back to green.
Continuity mistake: When Beavis is getting the idea to use the plate as a discus, the amount of cookies on the plate varies depending on the shot.
Continuity mistake: When Chris is trying to activate Hummingbird Power, his skin is suddenly lighter than in the previous shot.
Midori no chikyû wa makasetoke - S1-E2
Other mistake: When Yurika restarts the Nadesico, one of the screens pop up with a huge congratulatory "SAFATY ROCK OFF." (00:18:05)
Continuity mistake: When Thing is quivering on the ground, Psycho-Man is just a step behind him. A couple of shots later, Psycho-Man has moved back several feet. (00:02:58)
Tsuinzu gâdo - S1-E5
Other mistake: Van transfers the bunch of condiments from the cart to the table. Amongst said condiments, a big jar of "MASTARD." (00:07:00)
Love 'Em and Leave 'Em - S1-E8
Continuity mistake: In the scene where the Princess first has the idea for getting another love potion, the spots on Toad's head change to black then back to red.