I was squinting really hard at the files extracted from #Nintendo #Wii #VirtualConsole version of California Games.
I was like "Wait, why is one of the files called 'califo.games_rem'. That file name doesn't really make sense. ...Wait. is that 'rem' a group tag or something? Could this be the main program??"
Drop the file to C64 emulator.
BOOM. Enjoy the dulcet SIDchip tones of Cracktro.
Nintendo didn't have the cojones to make this the first thing that will be loaded by the Virtual Console emulator, obviously. Cowards.