@superfromnd BTW, when I tried to overwrite or change the path for the screenpack it gives me an error.
retropie supports neither mugen nor the switch, so...
Wine only emulates the operating system, the PC Diablo binaries are still x86 so will never run on a Pi. If you want to play Diablo, there is a PSX port.
Yes, N64 emulation is crap for many games, the Pi is weak and emulation is not that good anyway. A few games work well such as F-Zero X.
There are apparently some improvements to N64 emulators coming so maybe the situation will get better in the next few months or year.