Ash's Squirtle/History/Advanced Generation series/Kanto Battle Frontier

In Gathering the Gang of Four!, Squirtle returned to help Ash with his final battle against, meeting May's Squirtle. It expressed happiness in seeing Pikachu and Bulbasaur again and departed with the two, Ash, and Charizard for the woods. Though tension between the group began to erupt, they settled their differences and sat as Ash recalled his meetings with the four of them. After Pikachu was captured by Team Rocket, Squirtle participated in saving his teammate.

In Pace - The Final Frontier!, Squirtle battled Brandon's. Squirtle's successfully deflected, but Ninjask gained the upper hand by stalling Squirtle with Double Team and hitting with Aerial Ace. Squirtle managed to escape with Hydro Pump, but became blinded by, leaving it exposed to Ninjask's attacks. While the next Hydro Pump missed, the water was able to clear Squirtle's eyes. Squirtle then swiftly unleashed Skull Bash, knocking Ninjask out of the battle. Squirtle was then matched up against Brandon's. In this battle, all of Squirtle's moves were dodged or blocked by Solrock's Psychic moves. A missed Rapid Spin saw Squirtle crash into the wall, and it was flattened by, causing it to lose the battle. After Ash defeated Brandon, Squirtle returned to the Squirtle Squad.