Fanon:Sentinel

The Sentinel is the final boss of Mech Mode.

Quotes

 * Beginning: "I will destroy all of you puny tanks, how weak you look, I bet you are WEAKER than you puny things look!"
 * When Phase 2 starts: "You should have aimed for the head..."
 * When Phase 3 starts: "You stupid things are really trying to kill me! My apprentices, and me, will kill you! It's really a better choice than letting you kill me and them!"
 * When Phase 3 ends: "Nice try, but I'm still alive, FIRE THE CANNONS!"
 * When the Sentinel dies: "I will kill you one day, but I already have you in my trap!" During the time he speaks this, volleys of bullets will appear around him that are almost impossible to dodge.

Design
A cyborg that is mostly robot, but you can see the area around his top right eye, but the eye itself is mechanical. The rest of it's body is made of metal that the Sentinel is able to control at it's own will. The right eye has a robotic aiming system that allows him to shoot straight out of his eye. He is armed with a sword and a giant gun that shoots Annihilator bullets as fast as a Streamliner.

Attacks - Phase 1

 * Nope! - Shoots traps all around the arena, and the traps shoot lasers at players.
 * Bomb The Arena! - Calls in an airstrike, and many military planes come through the arena, dropping polygons, bullets, and bombs to kill the players.
 * Rings of Flame - Shoots many flaming circles toward the players, which ricochet off of the walls and hit players.
 * Time Stopper - Freezes all of the tanks, and shoots lasers at all of them.
 * STOP THEM! - Summons nineteen Shadow Apprentices to kill the players.

Attacks - Phase 2

 * Bombers - Bombs appear around the arena, exploding and dealing lots of damage to players.
 * Finale - Snaps, depleting half of the health of all players in the arena.
 * Get Them! - Summons Shadow Drones, which trail players trying to kill them.
 * Black Hole - Summons a black hole, which sucks players towards it, and if they stay in it for 25 seconds, they die.
 * Wall of Flame - Creates a wall of flame around himself, which makes him invincible during that time, and players cannot get inside the wall. During this time, he rapidly shoots drones out of his fist, which go towards players, usually the strongest ones.

Attacks - Phase 3

 * Killer - Snaps, killing the 3 strongest players in the arena.
 * Pentagon Power! - Summons 10 Pentagons around himself to block damage from players.
 * Defend! - Whistling, and 3 Defenders come to his side to guard him.
 * Energy Shield - Creates an energy shield around himself, absorbing all of the damage. Once the shield is destroyed, the Sentinel will shoot 3 spreads of 10 bullets, the final one being harder to avoid.