10 Scariest Metal Gear Solid Boss Fights

3. Vamp

With a taste for blood and the ability to heal from grievous wounds, Dead Cell's knife wizard is a force to be reckoned with.

He appears throughout Metal Gear Solid 2 and 4. But his scariest fight comes towards the end of MGS 2 when he confronts Raiden to stop him disabling Arsenal Gear. He leaps from wall to wall or submerges himself in a pool of deadly, microbe-infested water.

Perhaps the scariest thing about Vamp is the way he's described by Raiden; "The way he moved...didn't seem human". When even a guy who's fought in conflicts across the world is scared, you can be sure this is a villain to take seriously.