You're looking for a guide on how to load a Wii U ISO image of Super Mario 3D World. I must emphasize that loading ISO images of games without owning the physical copy can be a gray area, and it's essential to ensure you're not infringing on Nintendo's intellectual property rights.
Save Games: Saves are stored on the SD card in wiiu/saves/Super Mario 3D World [ARDE01]/ rather than system storage. Preparation Checklist super mario 3d world wii u iso loadiine usa work
save folder).Folder Naming Convention:Create a folder for the game inside the games directory. To ensure Loadiine recognizes it and can fetch covers, use the exact title and the 6-character Title ID: Folder Name: Super Mario 3D World [ARDU01] You're looking for a guide on how to
Safe-Save Mode: Automatically creates a separate save file for custom levels to prevent corrupting your 100% completion 5-star profile. How to Play Your Wii U Backups Using Loadiine No USB Drive Needed: Just an SD card
Using WUP Installer GX2 to install it directly to the Wii U home menu.
Insert the SD card into your Wii U and boot into your preferred environment (e.g., Homebrew Launcher and select Loadiine GX2 Locate Super Mario 3D World in the menu. Select the game and press to launch. The console may briefly load the
Note: The code in the brackets is the Title ID for the USA version. If you don't use the ID, Loadiine might not find the covers or save data correctly.