Tornado

Tornado is a boss found in a secret chamber of The Fortress of Time and is more powerful than the final boss of Terraria, making Tornado a secret boss/superboss. For some reason, if you come into contact with him, he will just bounce off you in the first phase.

Appearance
Tornado is about the same size as the player. He has hallowed armor without the headpiece and he also has the Obsidian Shield and the Bat Wings. He also appears to have the Possessed Hatchet, Last Prism, and two Cosmic Car Keys, one for the player, one for him.

First Phase
Tornado will fly around the arena in the UFO, shooting gray bouncing balls, the Wind balls. They are unaffected by gravity. The UFO will automatically be mounted by the player, as the edges grow Red Spikes, which do 9999. He will sporadically fire a wind laser from his Last Prism onto the player, with only 1/3 of the charge time a normal Last Prism does.

Second Phase
Tornado and the player will, at 85752, dismount their UFOs. The spikes disappear and the edges become green pads, which, when either one touches one, will have flipped gravity. Tornado will turn into a burning ball and zoom across the arena. Contact damage inflicts On Fire! and 104. Occasionally Tornado will enter physical form and shoot a wind laser, then continue this process.

Third Phase
Tornado, at 28664, will force both to mount the UFOs as the spikes return, lose ball form, and start using all the attacks. He will throw wind balls, fire wind lasers, use the Possessed Hatchet, which doesn't home, and fire tornadoes that move in a helix style. In the third phase, Tornado, the Player, and the red spikes are the only visible objects, the rest in pitch black. White spots normally appearing in <70% mentality do not appear.

Fourth Phase (Expert Mode Exclusive)
At 8000, Tornado will start to go berserk, as shown by him starting to flame. He will do the previous attacks with twice the damage, defense, and speed, half the reload time and charge time, and become twice as fast.