So you've beaten the Brain Lord and the Terrapus Queen. Or maybe you haven't.
Here is the biggest and baddest boss of them all:
A disgruntled npc android has grown tired of seeing fellow npcs imprisoned in tiny, featureless boxes. So what did it do? It created a mech capable of squishing many players.
Are you looking for a challenge? A boss that doesn't get stuck inside walls? Do you have too much jerky?
If so, come to Castle Wars and look on the map for 'BOSS'.