Heat Gauge (ヒートゲージ Hīto Gēji) is a gauge located at the bottom of the screen. Characters can use this gauge to execute Distortion Drives, Astral Heats, Crush Triggers, Counter Assaults, and Rapid Cancels.
It can be charged up to 100%, and is filled when the player hits or is hit with an attack. The amount of Heat gained per hit scales downwards as a combo goes on. The Heat Gauge resets to empty at the start of each round. When player's health bar is under 35%, his Heat Gauge will slowly gain Heat automatically at the rate of 1 unit per frame. Hakumen normally gains 3 units per frame, but when he has less than 35% health, he gains 4 units per frame. The Heat Gauge will have a flashing icon when this occurs.