Starting C64 games in CoinOPS without using a usb keyboard

A youtube commenter left a message saying he could not work out how to start Mayhem in Monsterland.

I made a video demonstrating how to do it:

I would still recommend using a usb wireless keyboard - much faster and more satisfying: https://coinopspacks.blogspot.co.uk/p/anyone-who-enjoys-emulating-816-bit.html