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Treehouse of Horror XIII: Season 14's, an the 13th edition, of the Simpson Horror Tales. In this collection Homer clones himself in "Send in the Clones", zombies attack Springfield after Lisa bans guns, causing Homer to go back in time to stop them from banning them and then again making them ban guns again (confusing but true!) in "The Fright to Creep and Scare Harms" and Doctor Hibbert turns Springfield citizens, including Otto, into animals in (one of my personal favourites) "The Island of Doctor Hibbert".

How I Spent My Strummer Vacation: Once Homer exclaims his secreat hate for his family on a new reality tv programme, in a cab that they don't know is filming them, they send him off to the Rolling Stones Rock n' Roll camp for 2 weeks. Also there is Otto, Wiggum and Apu. People running the camp are Mick Jagger, Keith Richards, Brian Setzer, Tom Petty, Elvis Costello, and Lenny Kravitz!

Bart Vs. Lisa. Vs. The Third Grade: Bart is doing poorly and is moved into the third grade. Lisa becomes jealous because he gets better marks than her. Otto makes an appearance in this episode.

C.E. D'oh!: Homer takes over the Nucleur Power Plant! Otto appears at the beginning of the episode in a adult class along with Homer.

Scuse Me While I Miss the Sky: Lights in Springfield are turnt down wiht ends up course alot of crime within Springfield. But later the lights are turned to their max power leaving Springfield in compete day light even late at night. Otto is seen in a crowd.

Old Yeller Belly: Santa's Little Helper becomes the new Duff mascot once he is found balancing beer on his nose, but his old owner comes to get him back...