- Mega Drive/Genesis/SEGA CD
- Nintendo Entertainment System (NES)
- Neo Geo Pocket
- PC Engine (CD)/TurboGrafx 16 (CD)/SuperGrafx (Fast version)
- Sega Master System
- GameBoy/GameBoy Color
- GameBoy Advance
- Game Gear
- Virtual Boy
Copy the entire directory (retroarch-wii) to your SD card in your 'apps' directory. Start up the Homebrew Channel and start up RetroArch Wii from there.
On first startup, RetroArch will create a folder in the root of your storage device called 'retroarch'. All RetroArch configuration files are stored here.
You can now select a ROM that this core supports and load it in the Filebrowser.
RetroArch will select one of the dozen or so emulator/game cores on start-up. The name of the core currently loaded will be shown at the bottom side of the screen. To select a different core - go to the Settings menu (see 'Ingame controls'). Select the option 'Core' and hit the A button. A filebrowser will appear where you can select a different core. Press A to switch to the emulator/game core.
After doing so, select 'Restart RetroArch' to load the newly selected core.