Metal Gear Solid 3: Snake Eater

Quite a mean boss. The main difficulty is that you need to constantly monitor his movement (he flies around the entire map on a jetpack, spraying everything around with a flamethrower. It may happen that he ends up behind your back, and you won’t even notice it). The main thing is to carefully inspect the room and as soon as you see The Fury, shoot three rounds from the Mk22 and run away. You can also use the Mosin rifle (you can get it after a non-lethal victory over End, but provided that you hold-up him first and get the MOSS camouflage). This will take much less ammo if you hit the head accurately (here you can shoot with some kind of quick-scope, namely: select Mosin, aim at the boss, shoot, then carefully press twice for quick recharging and so on 3 times. Repeat until the bitter end).