Sorry for the delay on the catacombs level, the boss took a while to complete. hes the only boss in the game, thus far, that does not run off of the “Boss Phase” system, so technically he does not have an attack pattern.
The droid skill and the ice shard skill are HIGHLY suggested for this level, and fire bombs work wonders against the boss, if your willing to let go of that heat wave for a level ;)