SEGA is having a mobile sale right now, and two of the games I think everyone needs to buy are Sonic The Hedgehog
here) and Sonic The Hedgehog 2
and iOS here
). Yes, the Genesis games. But these versions have been completely remastered, adding full widescreen, extra characters, extra levels, a higher-quality soundtrack, and save file support. Just 0.99 each is an absolute steal for what I believe to be the definitive versions of the games; I literally can't go back to playing any of the previous releases after playing these new ones.
The Android versions of these games can actually be played on the PC using Bluestacks
, an Android emulator. The games play amazingly well, and controllers are even supported, so everyone should be able to play them on bigger screens. The Android versions are also completely DRM-free, so you can back them up and bring them to ANY Android device, and they'll play without any data/Internet connection. They look absolutely fantastic on the Ouya, too.