Scolex is a Boss that can be found in The Womb. It is only vulnerable in its tail section. It can be hard to hit sometimes, but when you do, it does a lot of damage. In fact, Scolex has the lowest health out of any other Boss in the game, but it was buffed in WotL. Scolex will occasionally poke his head up and shoot 3 green bombs. It will also occasionally poke its tail up and shoot a Monstro-style barrage.