Hello!
This could be a pretty difficult one. I've played it just two or three times when I was a small kid, so some information can be inaccurate.
I've checked mame emulated games database quite often until ten years ago and I didn't found/recognize it. There could be a possibility of being not emulated yet (it won't surprise me, considering ie how many years another "oldie" like Acrobatic Dog Fight took).
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coin op (almost sure from a japanese developer)
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first 80s (probably 79-82)
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vertical shooter without scrolling (Space Invaders like)
- bitmap graphics
- colourful graphics
- very probably 8 colors on screen
- probably background was not black
-
enemies seemed "alien crabs" or something similar, they were not spaceships
- enemies seemed pretty organic and pretty big
- probably no more than eight "crabs" on screen
- "crabs" were animated: probably taking advance of horizontal flip sprites (I think loaded in memory at startup, I'm pretty sure they were not hardware/software flipped in real time)
- probably the crabs animation was slow pace when "in formation" but quick while attacking
- in the same arcade there were games like: Asteroids, Zaxxon, Mooncresta, Crazy Climber, Moon Shuttle, Pengo and others
Please GAF help me, this is the only game I played I'm not able to trace at all!
