You have piqued my curiousity, what is this small project for?
A few things. First, I'm playing with mixing audio. Second, I'm trying to get my own "arcade ambiance" soundtrack going. I like the existing ones, but they're a bit TOO busy for my tastes. Plus there's no actual arcade sounds in there, just the sounds of the games. No coin drop, no people...
So this was my first experiment, my very first attempt. I knocked it together in just a few minutes.
There are things I'd change...the Gauntlet sounds, for example, are stereo. They need to be mono because the sounds are coming from both sides. If you were in front of the machine, that would be one thing.
I've got one really crazy idea, but it's going to require some specialized equipment that I'll have to fabricate. I need a couple of mics and some other stuff.