To fix issues with Mario Party 8 (NTSC) in WBFS format on a modded Wii, you typically need to address file corruption during transfer or adjust settings in your USB loader. Common problems include black screens on launch or freezing during minigames. Fixing Black Screen & Freezing
If you haven't updated your Wii's backend in years, the WBFS might not read correctly. Ensure you have d2x cIOS installed. Slot 249: base 56 (v10 or v11 beta). Slot 250: base 57 (v10 or v11 beta). 4. Aspect Ratio Note mario party 8 wii ntscwbfs fix
Change the "Video Mode" from Use Global or Disc Default to NTSC or Force NTSC. To fix issues with Mario Party 8 (NTSC)