You need a WBFS. Do not use random torrents from 2012. Look for verified dumps from reputable scene groups.
Follow this workflow exactly. Tools required: A PC, a USB drive (formatted to FAT32 or NTFS), and a USB Loader on your Wii. punchout wii rom wbfs work
Always plug your USB drive into USB Port 0 (the port closest to the edge/bottom of the Wii when lying flat). 3. Essential Loader Settings You need a WBFS
Some download sites split large games into .wbfs , .wbf1 , and .wbf2 parts. Punch-Out!! is small enough that this rarely happens, but if it does: Follow this workflow exactly
Punch-Out!! Format: WBFS (compressed, ready for USB loader on modded Wii) File Size: Approx. 0.9 GB (vs. 4.37 GB ISO – great compression) Compatibility: ✅ Works perfectly on all major USB loaders