>>53656128Giegue has a long tail, ambiguous horn/ears, great psychic powers and was artificially made to be a superweapon. Also the people who worked on the first MOTHER games, the ones with Giygas, helped so much in the development of Gen 1 that they are always right next to Game Freak in the credits. And mewtwo only started looking like a cat later when Mew was given official artwork that made it less embryo-like.
