If you have a 3DS, get this game. Rather then bea shooting killing game, this is a stealth game. It is unnerving to see an enemy wlak right up to you while you cleverly conceal yourself.
If you're not sure, play the demo from the eshop, and you will know just how awesome this games is.
Metal Gear Solid 3 is kind of the perfect Metal Gear game to get started with, it is a prequel and helps ease people into Kojima's wild world. Much Tamer than 1,2 or 4 as far a story is concerned, this is still the best video game story on the 3DS to date (tied with ocarina of Time 3D) Characters seem very real and are very likeable. Gameplay is great, with the exception of certain camera angles that get jacked up while trying to stay with your line of sight. PLAY THIS WITH CIRCLE PAD PRO. That's all I'm going to say, played a few days without it, and then i got it. And its way easier to control now. The 3D is helpful to an extent, sometimes it helps determine how far an enemy actually is from you, which in a stealth game is key. The few instances of using the gyroscope are neat as well. Basically if you don't have anything to play on your 3DS put this (And Resident Evil: Revelations) in your Que! or go buy them! tons of gameplay, I am buying it today. It's a truly SOLID port! :)
P.S. the camera camoflauge is like a game in itself, take tons of pictures of what you think would be jungle designs for many different areas! My best success is actually from a picture I took of a Majora Mask my friend made me for christmas, it gets me 85% stealth! So Awesome!