@mitu said in n64 games 2 player support ?:
Open the configuration file for Mupen64Plus in /opt/retropie/configs/n64/InputAutoCfg.ini (also accessible via file shares at \\retropie\configs\n64\InputAutoCfg.ini) and remove the keyboard entry, see if it changes the player order.
I removed the keyboard entry and rebooted and that solved the problem. Thanks!