Season 6, Episode 39 - "A Poke-BLOCK Party"
4 September, 2004
The gang finally reach Mauville City, however Ash's Gym battle is forced to wait as the gang see an advertisement for a Pokémon Trick House, offering anyone who makes it through with a lifetime supply of Pokéblocks. May is eager to win the prize, so everyone enters, and meet up with a girl and her Whismur. But when Jigglypuff decides to perform her song, things may get complicated for the gang, and Team Rocket are also competing in the contest.

