Sure i wouldnt mind downgrading , cheats for any version of Mario Party will be great !On the last build I was hacking it was 00640400, with the update they changed it to 00640800. The only thing that changes when you use the sub weapon is the 0064 part not the 0800\0600. That's why I had a problem initially finding the energy for it.
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I have the base game. Not the update. I can try to see what I can do. Giving up on blaster master zero 2 for the night. Can't seem to get it right