Pokemon XY: Odemashi Ko Majin Hoopa
English title: Pokemon: Hoopa, The Mischief of Pokemon
Japanese title: ポケモン・ザ・ムービーXY『おでまし小魔神フーパ』
Type: OVA
Episodes: 1
Source: Game
Genres: Action, Fantasy
Studios: OLM
Duration: 14 min
Rating: PG - Children

An anime short for the Pokemon XY series. It is available in Japan along with the purchasing of a ticket for Hoopa and the Clash of Ages movie, which this short ties into.

(Source: Bulbapedia)