SpongeBob's Kingler

SpongeBob's Kingler was the seventh Pokémon acquired by SpongeBob in the Bikini Bottom region, and the first of Ash's Pokémon to primarily reside at Professor Plankton's laboratory in Pineapple Town.

As a Krabby
SpongeBob originally obtained it as a Krabby in Mystery at the Patrick's House where he became angry at Sandy for her saying that it was a fluke that he captured all his other Pokémon. Storming down to the beach, he discovered a minuscule Krabby and then made fun of it. Krabby challenged SpongeBob, who fought it with a nearby stick and then captured it in a Poké Ball. Having six Pokémon already in his party at the time, the newly caught Krabby's Poké Ball was teleported away, much to SpongeBob's surprise and concern. He soon learned that Krabby was sent to Professor Plankton.

Kingler
It seemed at first that Sandy's forebodings would prove true; Marceline's Exeggutor used Psychic to trap Krabby in a whirlpool. However, Krabby managed to escape and took control of the battle with ViceGrip. It avoided Exeggutor's Hypnosis and took victory with Leer and Stomp. The intensity of the battle causing it to evolve into a Kingler. It was able to finish the rest of the match single-handedly, defeating Marceline's Seadra by slowing it down with Bubble and then knocking it out with Crabhammer, and then taking out his Golbat with a Hyper Beam. This was despite Sandy and Squidward's real concerns about Kingler's ability to prevail against Seadra's speed and Golbat's air attacks.

Stormalong
SpongeBob used Kingler in Johto during the Whirl Cup tournament in The Stormalong League when SpongeBob realized that he only had a single Water-type Pokémon, Totodile. He sent Bayleef to Oak's lab and Kingler joined his team. In the second round, after Totodile's loss to Poliwhirl, Kingler knocked out Poliwhirl with a powerful one-two punch Crabhammer. However, when Ash ordered it to use ViceGrip on Psyduck, the pain gave Psyduck the ability to tap into its psychic powers and defeat Kingler with a Confusion attack. Kingler was sent back to Plankton's lab afterwards.

Moves Used
A † shows that the move was used recently, unless all moves fit this case or there are less than five known moves.
 * Harden
 * ViceGrip †
 * Leer
 * Stomp
 * Water Gun
 * Bubble
 * Crabhammer †
 * Hyper Beam