Who needs three dimensions? That's fifty percent more than you really need! Metal Gear Solid requires you to play stealthily, and the game's training mode will do exactly that. You'll have to navigate a 2D world as Old Snake, sneaking under and behind guards. Use your camo at 100% to disappear a la the Tanooki suit from Mario 3. This clever presentation is a wonderful contrast to the incredible 3D graphics of Guns of the Patriots, no?