The Three-Headed Zombie is a boss in Clan Monster Siege and the Dead City Raid map.
this a green-skinned zombie with a muscular build and three heads, tattered shirt and pants. It is a boss in the tented area of the Dead City Raid map, and when it spawns in, it has multiple zombie head mobs that spawn in around it. One head looks vicious and angry, one is missing an eye, and one has a frightened face, probably because of the infection. Its a reskin of the Evil Bug from ??? but bigger