Found this on the KLOV forum today....
View attachment 8808
I can't actually say it's a mame cab for sure, but I just don't think the Tekken 1 CP art, the Tekken 3 marquee, and the giant shopping cart sized control panel is being used for just Puzzle Bobble. Someone mentioned it previously being a light gun game. It must have taken a forklift to move.
Looks like one cab giving the other one head. XD