Mario & Sonic Guy
Old rivalries live on!
Clear the true Solo All-Star mode on Normal or higher without healing between rounds while playing as Captain Falcon. Basically, if you clear that challenge, you'll clear the other challenge as well.Still if you want to make it easier by splitting it into two challenges, he is pretty much a golden hammer for that challenge.
Btdubs, what is Cap. Fal. challenge?
And to be frank, the Golden Hammers should probably be saved for the more ridiculous challenges, such as clearing All-Star on Hard with all characters, or clearing Solo Classic at intensity 9.0 within 12 minutes as Marth. Of course, just to be safe, you should just hold onto your Golden Hammers until you're at a point where you can use them without having any regrets.