Install and Play Gamecube Games (ISO) on Wii U GamePad

Gamecube games can be installed in your Wii U System Menu and played with the gamepad, a unique features with custom firmware that is unavailable in the vWii application.

USB Helper will not download Gamecube games. You must provide the ISO file and USB Helper will make it possible to to the Wii U Menu

Follow this guide on how to install and setup Wii U USB Helper if you haven’t done so already.

Requirements

Hacked Wii U on Firmware 5.5.4

USB Helper requires a Wii U with custom firmware such as Mocha or Haxchi

Wii U USB Helper Installed

This guide assumes that you have Wii U USB Helper completely installed and setup to download backup games
Follow this guide on how to install and setup Wii U USB Helper if you have not installed the application before

SD Card (64B or larger recommended)

An SD card is required to install the homebrew and game files on your Wii U console
The SD card must be formatted to FAT32

Windows PC

Wii U USB Helper is a Windows application
Wii U USB Helper Launcher is the collective name for the patches required for USB Helper to function

Internet Connection

An internet connection is required to convert games with Wii U USB Helper

Gamecube .ISO Game File

Gamecube games cannot be downloaded with Wii U USB Helper, they can only be converted to virtual console injects that can be launched from the Wii U System Menu
Gamecube virtual console injects can be played on the Wii U Gamepad

WUP Installer GX2

The WUP Installer GX2 homebrew application will be used to install converted Gamecube titles to your Wii U console
WUP Installer GX2 can easily be installed from the Homebrew App Store

Converting Gamecube ISO

Insert your SD card into your PC
Launch Wii U USB Helper
Search for the Gamecube game that you wish to install and select [Add] to add it to the download queue
Select [Start downloading] to begin
A window will appear, select [Prepare My SD Card] then double-click your SD card to prepare it
Select [Browse] then choose the Gamecube .iso game file and wait for the process to complete
Select [Copy to SD] -> select [Copy to SD] again in the copy queue then select your SD card to begin
Once complete, insert your SD card into your Wii U and power it on

Install Gamecube Game from SD

Load your CFW patches and load the Homebrew Launcher via your preferred method
Select WUP Installer GX2
WUP Installer GX2 can easily be downloaded and installed from the Homebrew App Store.
Select the game you wish to install then select [Install]
Select [NAND] or [USB] as the install location and wait for the process to complete
Press [Home] to close the Homebrew Launcher to find your game installed in the Wii U Menu
Launch your game and select if you wish to use the GamePad or not
The Wii U will boot into the Wii loader and your game will launch

Pressing [Home] at any time will end the session and return to the Wii U System Menu

Congratulations, you can now download Wii U, Wii and Gamecube backup games with USBHelper and install them to your console with WUP Installer GX2.