In the modding community, creating a WAD shortcut for Mario Party 9 is notoriously difficult and dangerous:
: Installing a faulty shortcut WAD can cause the Wii to boot into a black screen, effectively "bricking" the console unless the user has recovery tools installed. The Solution mario party 9 wii wad exclusive
Some websites advertising the claim it includes "unlockable characters from the start" or "extra bonus boards." In reality, Mario Party 9 had no DLC. Any such claims are likely save game hacks injected into the WAD package. In the modding community, creating a WAD shortcut
Any "WAD" file for Mario Party 9 found online is typically a custom-made forwarder or a compressed version of the full disc image created by the homebrew community, rather than official exclusive content from Nintendo. Why Mario Party 9 Stands Out Any "WAD" file for Mario Party 9 found