Hi guys, Tech James here, This tutorial will show you guys how to download & install Nintendon't onto your. The Wii is backwards compatible with GameCube games. As such, it is also able to play GameCube backups. SD card, No, - Supports compressed ISO. I have a Mac and I am using Witgui to transfer ISOs of games from my Mac to a WBFS How can I play these GameCube games on my Wii? How to SoftMod a Wii and play backup Wii.