Use a Wii remote for retro gaming on the Mac
MacOSXHints | Install and run DarwiinRemote on your Mac — you must have Bluetooth. You will need to map the keys for the remote with the above app to some keyboard keys. The default setup is for Front Row. Create a new set not using any Front Row keys. Now with your game emulator, map it to the same keys on your keyboard. Now you can control your game emulator using your Wii remote.