The alien from The Alien Trilogy (hahaha, how un-original...)
A) What it lookes likes: looks like the alien from the alien trilogy...
B) What do its lackeys look like: Ohh...those face hugger things...those nasty spider thingies...you know what i mean
C) How it unleashes hell upon the Gantzers: Dude...aliens got acid spit...that's toal pwnage
D) Best method to kill it: Shoot it