RetrOSMC - Exiting games

Just installed RetrOSMC on my OSMC (running on RPi3).
How do I exit games? The only thing I can figure out is unplugging it, which I just know is wrong.

Figured it out:

Set a “hot hey” when assigning buttons to the controller. (If none is set, this defaults to the “Select” key.)
To exit a game and return to the RetrOSMC main screen, hold the “hot key” and press “Start.”