Kyuukoukabakugekitai: Dive Bomber Squad

This Prototype appeared at the AOU1989 show but there is no record of it otherwise. Most of the hardware (Z80’s, SN76489’s) was already out of date the year it was shown, and it does not compare very well to Namco’s Metal Hawk (which has similar gameplay but much more advanced graphics) on Namco System 2 hardware.
The only known board is a hotwired jury rigged prototype board.