The Tatsu Tatsu no Mi, Model: Heat Dragon is a Mythical Zoan-type Devil Fruit that grants upon its user the ability to transform into a Heat Dragon hybrid, and a full Heat Dragon at will, making the user a Heat Dragon Human (熱竜人間 Netsuryū Nigen?). "Tatsu" (タツ) is Japanese for "dragon". It is called the Dragon-Dragon Fruit Heat Dragon Model in the Viz Manga, and the Dragon-Dragon Fruit, Model: Heat Dragon in the FUNimation dub. It was consumed by Osu.