Can't think of too many ハロウィン episodes. I already 投稿されました one with Blue Exorcist. One episode I found funny was an episode of Hayate the Combat Butler. Ayumu is always shown in ランダム scenes with food. In one such ランダム scene, she went trick または treating hoping to get some candy, but then lamented that she wished ハロウィン would catch on in 日本 as everyone just thought she was nuts. Couldn't find a picture, but here's one of her all upset. I haven't watched enough Shaman King, but I wouldn't be surprised if that had a good ハロウィン episode.
