(Japanese: ポッチャマはぐれる！ Pochama Goes Astray!) is the 164th episode of the Diamond & Pearl series, and the 630th episode of the Pokémon anime. It is scheduled to air in Japan on February 18, 2010.
After getting repeatedly hit by Gible's Draco Meteor, Piplup has finally had enough. Angry, he leaves the group and runs away—heading back to Professor Rowan's research lab!