Gunstar Heroes Classic is a vintage 16-bit platformer re-released for a whole new generation, and is available for free to boot. Twin brothers Red and Blue head off on a mission to take on an evil empire, where they will have to mix and match weapons, throw each other at foes, and take on titanic bosses. If you want to double the fun while playing, get a friend over and play the multiplayer mode over local Wi-Fi.