emudeck.github.io makes setting up a lot of emulators pretty easy on the deck.

i’ve played mario sunshine and the metroid prime games on it, so i’d think most of the wii and gamecube games wont be a problem.

hell, people are playing switch and some ps3 games on it so i everything from before the gamecubes generation will probably be fine, unless the emulators for a system are not in a great state in general.