Continuity mistake: Fluttershy's neck disappears after she says, "I don't know if I can cheer enough to help her".
Members Only - S1-E2
Continuity mistake: In the last scene, when Daffy and Bugs are talking to each other, Daffy's towel is yellow and in the next shot, it's white.
Continuity mistake: In the opening credits, as the room becomes animated, Ricky has a coffee mug an inch away from him. The mug moves a good 10 inches away from Ricky the shot after Karl says "All right?" (00:00:35)
Speeding Is Dangerous - S1-E22
Other mistake: When Shine says, "I think I'm OK," his front tire is layered over the railway tracks.