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』
Alternative titles: Pokemon XY: The Minidjinni of the Word "Appear!" - Fuupa
Type: OVA
Source: Game
Episodes: 1
Status: Finished Airing
Aired: Jun 19, 2015
Duration: 14 min
Rating: PG - Children
Studios: OLM
Licensors: The Pokemon Company International
Genres: Action, Fantasy
Demographics: Kids

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)