J rode Salamanece to capture the desired Pokémon like Gardevoir. However, after being attacked by Officer Jenny, she had Salamence use Hyper Beam to attack Jenny's Arcanine and stop its Flamethrower attack.
When the heroes went to rescue a Shieldon from J, the latter, riding a Salamence, sent Drapion to battle Ash and Pikachu. Drapion used a Cross Poison to wound Pikachu, whereas Gary sent a Blastoise to assist Ash. Blastoise fired a Hydro Cannon on J's Salamance, who retaliated with a Hyper Beam. Pikachu used Thunderbolt, but Drapion endured the attack. It retaliated with Pin Missile, combined with Salamence's Hyper Beam, countering Pikachu's Thunderbolt and Blastoise's Hydro Cannon, and hitting those two Pokémon. As J received report of the police officers coming their way, she canceled the battle and flew away.
To capture a Riolu, J flew on her Salamence, intercepting Ash and Kellyn guarding that Pokémon. Pikachu fired Thunderbolt and Piplup used Bubble Beam, but were countered by Salamence's Hyper Beam. As J went to capture Riolu, Kellyn's Floatzel fired Water Gun, throwing Salamence off-balance and causing J to miss. After Ash and Riolu escaped her, J commanded Salamence to destroy a forest with its Flamethrower to smoke Riolu out. When she found Ash and Riolu, she shot a beam to turn Riolu into a statue. Her Salamence used Hyper Beam and Flamethrower to attack Ash and his Buizel, who evaded.
J used her Salamence's Hyper Beam to knock down the rock, ice, and steel pillars inside the Snowpoint Temple and Flamethrower to awaken Regigigas. Salamence was also able to hold its own in battle against that legendary Pokémon, using Dragon Pulse to counter its Hyper Beam. It also evaded a volley of Hyper Beams from Brandon's Regirock, Registeel, and Regice with ease. She attempted to shoot a beam to capture Regigigas, but Ash's Pikachu and Dawn's Piplup launched their attacks to stop her. To retaliate, Salamence used Dragon Pulse to counter.
Jessie wrote a letter to Team Rocket HQ that she, James and Meowth were the ones that defeated Hunter J and her Salamence, and disbanded Team Galactic organization.