Someone asked me to take screenshots of Metal Gear Solid 3d. It doesn't look good, and the shots look even worse hah. All of them are from the first few minutes, since I just got the game. (They are out of order too hah)
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Thanks! Now we can finally compare the Vita and 3DS versions head-to-head. Wahahaha!
Super Late Edit: I guess I should add my thoughts here too.
The home console version of MGS HD is easily the best. It's gorgeous and it runs at a beautiful 60 fps. Plus it has Peace Walker. Controls are unchanged from the original games.
The Vita version of MGS HD is a great port. Runs at 30 fps and the graphics are close to the console versions. Controls are a bit different, most notably L2/R2 item/weapon swapping got mapped to the touch screen. There's some other touch screen and rear touch pad gimmicks I never bothered with.
The 3DS version of MGS3 is kind of interesting. Runs at 15 fps, textures are muddled, the grass is much thinner, and the grass pops out. Controls are quite different; the biggest new features are crouch walking, third person shooting, the ability to move and shoot simultaneously, and the removal of the stalking button.
If you want the best experience, get the home console version. If you want to play on a handheld, I'd recommend the Vita version. Its smooth framerate is sooo good; I just wish it had crouch walking. The 3DS's new shooter controls I don't really care about, 'cause that's not how I play the game anyways.