The mask itself has 100 health and deactivates when defeated, which stops it from moving, dealing contact damage to Isaac, or from firing certain projectiles when used by the heart. The mask has 100 HP, and can be damaged by explosions, piercing shots, or by being shot in its open back.The mask freely moves around the room, briefly speeding up and chasing Isaac if it sees him in a cardinal direction.Once the chain is broken, the mask and heart are unbound from each other and their behavior changes: If the mask hasn’t charged in a while, it starts pulling the heart with it in its attempt to reach Isaac.
The chain only extends for this attack, it's normally rigid and constrains the mask and the heart to a specific length.The mask cannot charge if it’s close to Isaac.Upon colliding with a wall, the mask launches out a spray of rock projectiles before being pulled back to the heart. Occasionally, the mask charges at Isaac when he approaches it from any cardinal direction, predicting his movements. The heart slowly wanders around the room, and the mask attempts to move toward Isaac, constrained by the length of its chain (which reaches up to 4 tiles outward).During this phase, it only has one attack: The Visage is bound together by a chain and cannot be damaged the chain must first be destroyed to progress the fight, and has 150 HP.