The Venom Pit

You guide Snake Eyes with the keyboard, using the mouse to aim and fire his weapons. The game gives you a few tools to work with. You have a primary gun, but you can also pick up grenades or use a sword for close combat. Some doors require keycards found on defeated enemies. The pace is quick, and the rooms can get crowded, making you watch your corners. It feels like a tense, methodical sweep through a hostile place.