Zombie Titan

The Zombie Titan is a massive black zombie that pops up during the Blood Moon. It has got a lot of health and damage. It is really massive, as seen in the picture. If it can reach you it will kill you directly. It is just as fast as a player without speed upgrades. It has so much health that it often takes multiple good players and guns to take it down.

If it targets you when it first spawns, and your tycoon hasn't got a second floor, you'll have a real problem (as far is I know, it always targets the Yellow tycoon, I don't know this for sure or tested it). It will jump on top of your tycoon, making it impossible to reach the floor it's standing on.

The best way to get rid of it is to draw it to another tycoon.

However, if you have the Master Sword, and it is on your tycoon (preferably), you can swing it at it multiple times before dying. Repeat a couple times and it will be dead.