Mr Khan on 22 May 2012
It is odd that it never appeared in Wii Music, given the purpose of the game. You would figure, however, that ISO/cartridge Rips (plus some sort of source-code-search program) would have yielded it by now if it existed in any of them
I did find it in Yoshi's Story, but that's all.
Monster Hunter: pissing me off since 2010.
