For the TV series:
- They Changed It, Now It Sucks!: Season 2 for many fans. With Olivia and Ian going through Vocal Evolution, Julian being Demoted to Extra, Daisy taking a a level in jerkass, the addition of songs (especially the one Olivia sings Once an Episode) and the O gadget, plus the switch from a realistic tone to Denser and Wackier from the show, people were unhappy with the changes.
- Uncanny Valley: All of the pigs fall into this, making this one of the creepiest kids cartoons.
