Ponygon was named by
Kiyo because Ponygon was unable to speak his real name, which is Schneider. He looks like a donkey or a small horse. He is friends
with
Zatch and is more then often seen in the show getting into some kind of trouble. So far he has been seen falling off a makeshift
sled that
Zatch used to get to
Kiyo's summer camp, getting chased by a bullying girl in the park, coming out of the airport luggage conveyor belt, among many
other scenarios.
Ponygon currently has no partner and is always trying to get someone to look at his book. Kiyo didn't like Ponygon at first since he found him annoying... though he had good reason, as Ponygon always bit his hand. Ponygon
got angry when Kiyo cut the rope Ponygon used to carry his book on his back since his mother made the rope. However, when Ponygon tried to tell
him that, since all he made were horse noises, Kiyo had no clue what he was saying.
Kiyo soon learned that Ponygon was befriending all of his friends since he was looking for a partner. He was a Mamodo, like Zatch. None of Kiyo friends had Mamodo's, which is why he kept wanting to hang around, but Kiyo was already Zatch's human partner, so Ponygon felt no need to befriend Kiyo.
Ponygon now lives with Kiyo at his house until he finds a partner.