Bulbasaur is a small, four-legged pokémon that is bluish-green in color with dark green spots on its body. It has red eyes, a wide mouth, and slightly pointed ears. When its mouth is open, a pair of pointed teeth can be seen on its upper jaw. It has thick paws ending in three sharp claws. Bulbasaurus has a bulb on its back from birth, which provides it with energy during photosynthesis and also contains nutrients. When a bulbousaurus is ready to evolve, the bulb on its back begins to shimmer with a bluish color and later transforms into a bud.