em.... to get a few of the ways to die... horror will help you with that... decapitae, cut in half, stabbed by projectiles, ripped in parts... and it goes on.
LOLZ... the easiest way to do the last boss is simply to start with three bar-decoys, the triple machine, and a sky mine... as you go get mini gun to replace 3gun, and replace everything else with sky mines, and everything has trouble even crossing the starting line, much less getting halfway, nothing made it through, no planes or anything, just be sure to have a couple of the mines more towards mine count, and about two towards damage, spacing out the timing.