Dolphin VR is a branch of the Dolphin emulator that enables native Oculus Rift support with a multitude of Gamecube games, including The Legend of Zelda: Wind Waker, Paper Mario: The Thousand Year Door, Metroid Prime, and many more!
How-To Guide Edit
Now, Dolphin VR is actually very easy to get set up for use with the Oculus Rift. It's nearly at plug-and-play status, but will still need specific tweaks for games.
Go here to get the latest version of Dolphin VR:
After you download it, grab you're favorite game and see if it works!