Pokemon Season 1 Episode 26 - Pokémon Scent-sation!

⁣When Ash reaches the Celadon Gym, he is kicked out. He soon discovers
that it is only for people who love perfume. So, with the help of Team
Rocket, Ash sneaks into the Gym disguised as a girl. In the Gym, his
disguise is ruined by Misty, Brock and Pikachu. During the battle, Team
Rocket interrupts and sets the Gym on fire. After rescuing Gloom, Ash is
presented with the Rainbow Badge.