Duel! Ataru vs. Ataru / Waking to a Nightmare Urusei Yatsura : Season 1 Episode 21

21-1. Duel! Ataru vs. Ataru Ataru eats a lollipop Lum gave him and gets a mouth burn. Running off, he finds Cherry and a weird melon, which Ataru eats to cool his mouth. The melon causes Ataru to split into two Ataru's, one polite and the other casual. The two continue to fight all day. 21-2. Waking to a Nightmare Sleeping in class, Ataru has weird dreams which he relates a little of as he occasionally talks in his sleep. Annoyed, his classmates wake him and a dream demon comes out from Ataru's sleep.