Can't think of too many हैलोवीन episodes. I already पोस्टेड one with Blue Exorcist. One episode I found funny was an episode of Hayate the Combat Butler. Ayumu is always shown in बिना सोचे समझे scenes with food. In one such बिना सोचे समझे scene, she went trick या treating hoping to get some candy, but then lamented that she wished हैलोवीन would catch on in जापान 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 हैलोवीन episode.