The Neo Geo game system was a CD-based console that featured dozens of games, many of which have been made Virtual Console games for Nintendo's Wii system. If you have Neo Geo ROM files on your computer, you can inject them into a NEO GEO WAD file to make them ready to install on the Wii console.
Download a NEO GEO WAD file from "We Hack Wii." The only way to create a new WAD of the game file is by injecting the game into a current WAD file. Click on the download link, and save the file to your desktop.
Download the "Impaler Wii WAD Injector." This application uses a mix of WAD software files to replace WAD files with new games. You must convert the game using the same system file.
Open the "Impaler Wii WAD Injector" folder, and double-click on the application file. A small window pops up in the middle of the screen.
Select "NEO GEO" from the drop-down menu labelled "ROM Type."
Click the box next to "Select ROM." Use the explorer window to select the NEO GEO ROM you want to create a WAD with. Click "OK."
Click the box next to "Select WAD." Choose the NEO GEO WAD file you downloaded. Click "OK."
Name your WAD. The game title of the ROM you want to use is the best choice.
Click the box next to "Remove Region Code." Even if your ROM is NTSC, removing the region code helps prevent any errors.
Create the final WAD by clicking the "Inject" icon at the bottom of the screen. The NEO GEO WAD will be completed in a few seconds.