The Wonderboy is an interesting conversion... It's an Atari Super Breakout cabinet, with the original oversized start buttons, and 70s stripe design on the control panel intact. The original "owl eye" coin door has been replaced with a door from a Gottlieb pin.
Put a proper Wonderboy marquee and owl eye coin door on it, and I think it would be a decent looking little machine.
The PacMania machine however, is a total embarrassment.