That's really all there is to Dominator. It is the scrolling shoot 'em up that you have seen a dozen times before whatever computer you own. Its scant distinguishing features make an uncharacteristically disappointing launch from System 3.
On the Spectrum at least, Dominator is one of the best shoot 'em ups around, probably the best I've seen since R-Type. The Amiga version is up against stiffer competition, but it holds its own with the likes of Menace and Denaris. Whichever format you own, if you're a hardened shoot 'em up veteran, Dominator is a game to scour the shelves for.