Riku increases all his firepower and heat to make his fire stronger, bigger, and hotter, he uses this to propel him to make him faster. This form was first shown durning the Enies Lobby Arc durning his fight with Yaro Black of CP9 whe he spat on Robin's Name. In this form Riku controls thermal energy itself, as so, he can raise his fire's heat to whatever he can control. In this form he turns all his attack names to Thermal Dragons, and Burning