Squirtle is set to be released for Super Smash Bros. Ultimate on September 20th, 2019 and was revealed in a Nintendo Direct on February 13th, 2019.
A Tiny Turtle Pokémon™. In times of danger, it pulls its arms and legs inside its shell to protect itself from enemy attacks. When it conceals its neck, it also shoots a powerful stream of water from its mouth. Its shell not only protects its body, it also reduces water friction when it's in the water.