Team Rocket snuck into the Gym and encountered Gloom. James had Weezing try use Poison Gas on it, but failed and Gloom emitted its scent, knocking Team Rocket out. During the Gym Battle against Ash, Erika sent Gloom against his Charmander. Gloom emitted its scent, causing Charmander to faint from the smell. After Team Rocket set the Gym on fire, Gloom was still inside and was afraid from the fire. Ash tried saving Gloom, but it started emitting its scent. Ash held his breath and took Gloom, but noticed it didn't emit its scent, since it felt safe in his arms. Ash saved Gloom out of the Gym, which impressed Erika to give him the Rainbow Badge.
|Stun Spore||Pokémon Scent-sation!|
|+ indicates this Pokémon used this move recently.*|
- indicates this Pokémon normally can't use this move.