Treecko is a fictional Pokémon character in the popular anime series 'Pocket Monsters,' also known as 'Pokémon.' Treecko is a Grass-type Pokémon known for its agility and calm demeanor. It resembles a small, bipedal gecko with a bright green body and a red underbelly. Treecko plays a crucial role as one of the starter Pokémon available to trainers in the Hoenn region. Its ability to scale walls and its sharp reflexes make it a favorite among trainers who value speed and precision in battles. Treecko eventually evolves into Grovyle and then into the powerful Sceptile.