The whole battle takes place in a backwards-scrolling underground lake, with the roof of the cave often hampering your fire.His atttacking leitmotif is to lob a mortar which explodes into a few nasty bullets; this he will keep up in-between his other, more dramatic attacks. He will snap his neck up and breathe fire at you which isn't a drag unless the roof pins you. But that will typically be taken care of in the next attack.
Zandick II will rear up and smash rocks from above or below and of course, they can harm you. This can be useful as the roof of the 'lake' can often hinder your lasers. His last attack in his attack pattern is a fountain-like burst of lasers from his body. At last, after much scrolling and waiting to get yer shot in, Zandick II succumbs to your laser. Thus ends the less-than-optimal and shortest paths of Darius Force.