Blastoise

Blastoise is a Water-type Pokémon that first appears in Pokémon Red and Green Versions (outside of Japan Pokémon Red and Blue Versions). It is the final form of Squirtle, evolving from Wartortle at level 36. As of Generation VI, Blastoise is capable of Mega Evolving into Mega Blastoise.

In the Super Smash Bros. series, Blastoise only appears in Super Smash Bros. and Super Smash Bros. Melee. When it is summoned from a Poké Ball it attacks with Hydro Pump, which has it firing blasts of water from the cannons on its shoulders that push away opponents. In Super Smash Bros. Melee, Blastoise is pushed back after each shot.

Trivia

 * Blastoise is used as a stand-in for Bowser in the official "Mario Pikachu" merchandise promotion.