thanks for your hopes but even rechecking videos, that's not them.
astromash has no arcade port it seems. but the action seems more in the spirit of the game i seek memories
sure there was a surface earth or something concrete floor, that wasn't a pure dark space area game (due to limited video display /memory programming in earlier days?)
i try dig in memory.. i suspect there was 2 bonus stages.. the first one, was easier to destroy the falling asteroid, because it was average size. that's the second bonus stage i described in the first topic which was quite impossible without A-button constant fire..
i suspect that was a bad forgotten game at this time even.. we had a little bar in a little village.. only this game for a few months & the so hardddd Amidar came in 4 years of living there

...
the sensation was like a second choice game. in these times, (Phoenix) was the absolute joy when it came for 3 days per year of a little funfair in a average sized van, equipped with some arcades/2pinballs / shootout chigaco coin EM & the so scarce b&w "Secret base sega", absolute shame on SEGA that this game is certainly lost & nowhere can be saved since the set of eproms/etcc

(the goal was to bomb silos on a mountain by digging with the bombs.. kind of Worms in realtime, or a Canyon bomber but more sophisticated)
these games where the debut of 80's.. or the latest of 70's.. but blew us way more than this lost shmup., but the harder i try remember, the more i would like to play it again for the feel & nostalgia.. hoping it's not a lost game not emulated..