The Monogon Core isn't a traditional boss but a complex environmental puzzle and combat gauntlet that serves as the game's climax. You'll need to activate multiple power conduits while fending off waves of Nullmen and other enemies. Prioritize disabling the conduits, which often requires solving a small physics puzzle or finding a specific item. Use cover effectively and manage your ammo. The environment itself is your greatest weapon and obstacle; manipulate it to your advantage.
