Love the "Real Arcade Controls" on the Space Invaders cabinet - then it has a joystick for movement. Space Invaders in the arcade controlled with left and right buttons, not a joystick ...
I much prefer the Burgertime cabinet to the Karate Champ design. It has much more character, which is what you are going for here. The original Karate Champ arcade cabinet was pretty bland after all. Unfortunately that also means it takes the vertical monitor resolution, but the three other games are horizontal orientation so that's not great. I think in the end, if I were making the pick I would have made the cabinet themed on Bad Dudes to have a horizontal monitor, that cabinet was pretty nice but it has a curved marquee which is probably tougher to package in a compact form for shipping. As I recall, I think Caveman Ninja was a conversion kit, so it wouldn't look as great since they were made to fit in a wide variety of cabinets and did not have full graphics on the sides.
The Japanese versions had a stick as did the cabaret and cocktail versions. IIRC, the buttons were exclusive to Midway’s US cabinet.
Agreed on Burgertime. That’s a classic cab.
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