TJ Townsend has recently put out a few videos on YouTube demonstrating how to take a pixelated screenshot from retro games like Contra and Faxanadu and giving them an HD-style, remastered look, using Adobe Photoshop CS5.
His latest video takes a screenshot from the 16-Bit SNES classic, Super Metroid. The results look spectacular, giving rise to imagination to what a theoretical HD remake of Super Metroid could look like.
The YouTube video can be seen below: