Happy is a small blue Exceed with a white belly. He has a rectangular head, with pink ears, big black eyes with small, thin eyebrows, and light blue cheek marks near to his tiny whiskers (two on each side of his face). Happy has a triangular nose that leads to semi-round upper lips on the sides. His body is rectangular too, and being an Exceed, it has a structure that allows him to walk erect unlike normal cats. Despite having no thumbs, Happy is able to hold things. He has a long, white-tipped tail; and the other parts of his tail are blue. Additionally, Happy is able to use his tail to hold onto objects.Happy is usually seen carrying around a green backpack, where he keeps food and items that can be used in battle. This backpack also covers his green Guild Mark that is on his back. When using his Magic, he can grow a pair of large, feathered, angel-like wings that allow him to fly around and carry others. Happy usually does not wear clothes, the only few times being during the Fantasia Parade, to disguise himself in Edolas, and when his parents gave him clothes,again in Edolas.