later gain access to other forms in the series progress: Photon-Earth (フォトンアース, Foton Āsu): Taiga's power-up form, which he obtained through Ai Tennoji's...

First appeared in episode 53 of Ultraman Taro. Berserk Monster Arstron (凶暴怪獣 アーストロン, Kyōbō Kaijū Āsutoron, 5): A monster on that appeared in wake of Moco's...