From what I've seen so far, I don't dislike any of the episodes. I did, however, feel that "Moai Better Blues" seemed a tad short compared to the other episodes in the season, didn't think it was bad.
Now, what bothered me most was those driving minigames in Season 2. I loved the premise, but gods were some of those unnecessarily hard. It didn't help that I had to redo bronze/silver in episode 2, and bronze in episode 3. Must've taken me forever to get the golden Zombies and Bagpipes ones. But that's mainly cause they, like the "games" in SBCG4AP, felt like they broke the pacing a bit too much. Most of the difficulty I experienced in the games typically came from those.
I should, however, point out that I enjoyed getting the decals and the car upgrades in general. I just felt some of the gold/silver requirements were ludicrously hard in episodes 2 and 3. Perhaps it was because I just couldn't get the timing down. I noticed episode 5's minigame was surprisingly easy by comparison. But then, I like them best as fun diversions and not actual mouse-tossing challenges.