To play Punch-Out!! (Wii) on a homebrewed console or emulator using a WBFS file, you need to follow a specific setup process involving file management tools. Note that downloading ROMs of games you do not own is illegal; these tools are intended for managing your own legal backups. Preparing and Loading WBFS Files
Please be aware that downloading and playing ROMs may have risks, and ensure that you have the necessary permissions and follow applicable laws. punchout wii rom wbfs link
Additional information
If you're looking for a more legitimate and safe way to play Punchout on your Wii console or other devices, consider the following alternatives: To play Punch-Out
Punchout Wii ROM WBFS Link: What does it mean? Create a WBFS file : Create a WBFS