@mochimochi Oooooh! Actually didn't know about it, and though I had checked the project recently, I hadn't seen the issues part yet. Reminds me maybe I should check those more often.
i'm not sure any n64 game runs 100% full speed with no glitches, but i regularly use mario 64 in my testing and apart from a few specific areas it seems full speed.
@isayno The pi3 needs 2 to 2.5 amps by it's self to run well. If the screen is pulling power from the pi I think that is your problem. I couldn't find a manual for your screen but in the remarks on Amazon's site saying he had some problems. I will paste it here:
"Works pretty well and Does what I need it to do. I followed the instructions others have posted to get the pi to display to the screen and it works perfectly. Has a weird quirk which I cant seem to figure out. I decided not to power the screen from the USB of the pi so that I don't have any power issues when the pi is running. But if my power source is separate I.e 1 power source for the pi then another for the screen nothing will display on to the screen. However if I have 1 power source lets say a battery bank with 2 USB ports and the pi and screen are powered off that everything works fine. But once I power the screen on separate battery bank nothing is displayed again. Which I find odd that the screen needs to be powered on by what seems to be the same power circuit as the pi and that it's not just hdmi. Weird but for my application they're on the same power source anyways."
It looks like the power source for the pi and the screen needs to be from the same source. My guess is the ground may be the issue but I have no other info. Hope this helps.
@gassyninja87 Please don't reply to 3 year old topics - you should have started a new topic referencing this one.
For your problem, re-install the retropiemenu package while your HDD is plugged in and it should be re-installed and appear in EmulationStation.