Mirapo resembles a mirror with a dark purple frame with skinny arms and diminutive legs. It has a set of circular eyes and an oval mouth with a slim tongue protruding from it. The space reflected by the mirror is black.
Mirapo are somewhat lazy, as they are seen sleeping when first confronted. However, when awake, they are polite and very obedient when asked to be warped to a place.
In the InaUsa's Mysterious Detective Agency series, Mirapo is shown to be a bit meek, never raising his voice at others and having trouble speaking for himself. However, he takes his pride as a mirror very seriously, causing him to snap at Inaho when she suggested glass doors as a replacement for his stolen mirror part.
By going through this Yo-Kai's mirror, it can transport you to any place you want, including the Yo-kai World.
In the games, Mirapo can be used as a teleportation system all around Springdale, but one must first find a Mirapo in the overworld and "wake" them up first in order to access that area.
Yo-kai Watch animation series
In the anime, Mirapo first appeared in Yo-kai Peppilon, when he got Nate and his parents home after a trip when they were stuck in traffic.
In the post-game of Yo-kai Watch 3, a Request can be completed that grants the player the Pocket Mirapo, an item that allows Mirapo to be used at any time by pressing left on the D-Pad. Pocket Mirapo can be used anywhere except inside dungeons.
His English name, "Mirapo", is a combination of a corruption of mirror and portal. His Spanish name, "Telespejo", is a Portmanteau of Teletransporte (Teleport) and Espejo (Mirror).
Mirapo is based on the ungaikyō, a tsukumogami (common item youkai) born from a polished bronze mirror. It only comes to life when its owner is asleep, and for that reason it's dangerous to leave it facing the bed.
Mirapo's "random" nicknames in Yo-kai Watch 2 are Miraport, Maria, Reflecta, and Nowyou.