We fight the first major boss Gigas in the early game on the hardest difficulty which is unlocked after beating the full game. On hard mode, enemy shields and health are tankier, and they hit much harder. But we take no damage throughout the fight. We fight the first major boss Gigas in the early game on the hardest difficulty which is unlocked after beating the full game. On hard mode, enemy shields and health are tankier, and they hit much harder. But we take no damage throughout the fight.