In what order should I play the Metal Gear games?

[KLXVER]

Sal.Paradise said:

Twin Snakes was not deleoped by Konami and adulterated the original in some silly ways. Don't bother with it. The original is still perfectly playable and great fun, apart from two sequences that are a bit awkward control wise. You'll be fine.

Hideo Kojima was supervising the development of Twin Snakes though...