Emerald Weapon
When you first get the opportunity to drive a submarine in Final Fantasy VII, there’s a good chance you’ll run into a big green manta raybot meandering across the ocean floor. And if you do, odds are almost certain you’ll be seeing the “Game Over” screen seconds later. The Emerald Weapon is a total powerhouse capable of killing your whole party with ease. Not only does the mech sport a bottomless barrage of heat-seeking missiles, but unless you have a piece of Underwater materia equipped, you’re up against a twenty minute time limit, the silent killer.