Pokemon: Yadoking no Ichinichi
English title: Pokémon: Slowking's Day
Japanese title: ポケットモンスター ヤドキングのいちにち
Alternative titles: Pocket Monsters: Slowking no Ichinichi
Type: Special
Source: Game
Episodes: 1
Status: Finished Airing
Aired: Jan 1, 2000
Duration: 3 min
Rating: PG - Children
Studios: OLM
Genres: Fantasy
Demographics: Kids

It consists of nothing but Pokémon-speak--similar to the mini-movies that air with each theatrical movie. It's a short special based on life of the Pokémon Slowking.

(Source: Bulbapedia and Graffitti studio)