Nevermind then; the exact problem is that Art of Fighting, Fatal Fury and World Heroes were not working on the Samsung HD that I used to see how my Wii looked through component, while some NES games did work.
'Work' meaning nothing is displayed on the screen, just black and you're forced to reboot the console.
Maybe it was just that Samsung monitor.
I'm glad about that then, because I wanted to get an HD screen but did not want to lose the possibility of playing all VC games.
Super Mario Galaxy looks awesome through component btw
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