Converting Wii U WUD image (essentially a Wii U ISO) to a format that can be used with Loadiine GX2 is very easy. 1. First you need to download Uwizard - A Wii U WUD Manager and NUS Downloader 2. When you load UWizzard you need to enter some keys for the program to function correctly: Wii U Common Key: D7B00402659BA2ABD2CB0DB27FA2B656 Wii U Espresso Ancast Key: 805E6285CD487DE0FAFFAA65A6985E17 Wii U Starbuck Ancast Key: B5D8AB06ED7F6CFC529F2CE1B4EA32FD This is done on the settings page as seen below: You can now use the WUD manager feature, a WUD is essentially an encrypted Wii U ISO, follow the steps below to extract your WUD to files / folder which can be used with Loadiine GX2. Add the folder which contains your WUD images Click on the game you wish to extract from the list You need the title key to decrypt your WUD, you should have this, if not you can probably find it on Google pretty easily (if you have a title.key file, simply rename the file extension to title.bin and Uwizzard will allow you to import it) Extract the WUD content's to a new folder on your computer. (This could take a while depending on the game Remember the game ID, you will need this in a minute. In the extracted files folder you should see a folder called data, inside this folder will be three more folders called code, content and meta Simply rename this folder to the name of the game, including the game id in square brackets. So in my example the end result would be Super Mario Maker [AMAP01] You now simply want to copy this folder to the Wii U's sd card and place it in the wiiu > games folder, the end result should look something like this: That's it, your game should be recognised by Loadiine GX2 and be playable.