I've had one game (a Space Gun) that is included in the above listed thread. They are a lot of fun although I found them to be a little more challenging to work on vs. pinball games. The main reason is that it is often impossible to trouble-shoot / fix while the game is playing because many of the 'guts' are on a tray at the bottom of the cabinet which has to be removed to access.

Certainly not a big enough reason to avoid them, but they can be tricky. Agree with all the other comments made above. I miss my Space Gun and I'm always keeping an eye out for another game!

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