Use Wii Backup Manager to transfer the ISO to WBFS again.

Ninety percent of Mario Party 8 loading issues can be solved directly inside your USB loader settings without modifying your files. For USBLoader GX: Turn on your Wii and launch .

Follow these proven solutions to repair your game file and get your virtual dice rolling again. 1. Verify and Re-Convert the ISO with Wii Backup Manager

Download and open the latest version of on your PC.

Ultimate Guide to Fixing Mario Party 8 Wii NTSC WBFS Loading Issues

If tweaking the loader settings results in the same black screen, your WBFS file might be corrupted. This often happens if the file was transferred using outdated tools. Step 1: Use Wii Backup Manager