Originally Posted by midget35
I have the original device, and this doesn't look like a MAME bug. Just been testing... horrible game, and weapon and energy do appear to be the wrong way round, but that would be accurate to real hardware. Hope this helps - let me know if more evidence is needed.

Great, thank you for confirming. It definitely helps.

I threw in an alternate background option with the labels reversed.
[Linked Image from i.ibb.co]