Ha, glad you enjoyed it! (That's mine.) It was a design challenge to myself; figure out a way to add a really large sub to a game in a reversible way. (...don't get me started on what typical sub kits do wrong!) Only way I could figure out to do it reversibly with no cabinet modifications was to lose the coin door entirely.
I actually did two machines with sub doors, my Mousin' Around and my BoP (back when it was BoP1). I briefly explored the idea of producing kits to make them, but quickly came to the conclusion it wasn't economically feasible. Part of the problem is that you *have to* put a big amp behind it, which means a big power supply for that. Second part of the problem is just the plastic blank itself; it's like $40 or so, then you immediately cut a hole in it of nearly its whole size and throw it away. It's one thing if you're building it for yourself and don't *really care* how much money you're dumping into it, it's another if you're buying it off the shelf; nobody wants to pay $400+ for a coin door subwoofer.
As for the tilt cam, that was basically a joke and small dig at Jason Werdrick. Since BoP2 is already running windows underneath the hood, it's simple to hook up a webcam and run it in a background window. Then repurpose one of the coin slot lights that you previously lost (since you know, the inside of the cabinet is DARK!) and Bob's your uncle... tilt cam! Truth is I almost never bother putting up the tilt cam when it's just *me* playing.
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