It's all part of the mission
Metal Gear Solid 3: Snake Eater, has to be one of my top games – and it takes a lot to impress me these days. It got rid of the crap featured in MGS2 (Namely Raiden), had a tollerable amount of talk about nuclear warheads, and the story was great.
However MGS3 also kept it’s usual amount of comedy features too. Not just card board boxes to hide in, but different costumes – or really, camouflage. One section of the game requires you to blend in with the scientists to make your way around. And the only weapons you have are these toxic cigarettes… and it’s just hillarious watching him use it.
He also has a anestic-soaked hankerchief, which he simply wafts to knock them out… But I left that out, cos it’s just too much.