[Found] Game Similar to Sinistar (was Blasteroids)
 

Described most of it in the title to be honest. You flew around in space and would eventually fight something that looked like a cross between an asteroid and Sinistar, with something like 8 big holes around its edge.

I can picture the damn thing in my head but I can't draw and we've yet to gain the technology to draw from my mind so that's no use.

Any ideas?

Space Pilot 89? http://hol.abime.net/2029
Photon Storm? http://hol.abime.net/1049

No and no unfortunately.

The game came in one of those weird square jewel cases and the front cover was the main boss (round tube-hole guy) but he was green on the cover for some reason.

Blasteroids http://hol.abime.net/142 ?

We have a winner. There's the picture of that evil shit...

http://hol.abime.net/hol_pic.php?id=...JWTllXZHBZMnM9

Thanks s2325.

Any good Sinistar ports on Amiga. Playing it using MAME has no sound.