That does sounds cool. :)
Since the game doesn't have a traditional notion of damage, maybe you have to hit a certain number of targets before he dies.
Could also do a boss that rebuilds itself in a new form JRPG style, after you destroy the first version.
i was thinking a red circle (the thing on spider-tron) would open up when he gets his hammer stuck, except at the last hit, which would then cause him to decay a little bit and fall into the lava. you would go from his arm to his chest and hit his weak spot.
the boss would have to be tough enough so that its you vs the boss, with no mark 3 bots in the way.
my other super boss ideas would tie into my idea of having a ninja or knight class to hit the red circles in different ways, like making arrow resistant metal and require shurikens to remove the armor and reveal the red circle, or to reflect a laser beam off a sheild toward an arrow resistant red circle.
all my class ideas date back to this post: https://itch.io/t/46098/update-021-balancing-and-bug-fixes
