> I used to try it on my soft modded Wii but it was slow, couldn't load many games, > based on an old version of mame. Gauntlet for example was a bit sluggish to play
There was an SDLMAME port available that ran up to date ROMs (it was based on at-the-time perfectly up to date MAME) and did pretty well for up to low-end 16-bit games in my testing.