Furnius

Fernius is a secret boss in bloons 3. To unlock it, you must pop 3,000 Fireballer bloon (Bloons 3)s. Then, at zone 3, you can chose if you want to fight the normal boss or this thing.

Movement: free.

Ammo: pusher darts

Ammount: Unlimeted.

Attacks
Attack 1: Shoots its purple fireball at you! Yikes! This thing homes in on you and does 10 damage!

Attack 2: Shoots bullets from its sides. They deal 15 damage each.

attack 3: Shoots a laser out of its eye. It does 10 damage EACH SECOND it is on you, so watch out!

Attack 4: charges up, and BLASTS AT YOU AT FULL SPEED! This attack is INSTANT DEATH!

How to hurt
First, wait until it uses attack 1. Hit the ball with 3 darts. It will be sent flying back into the boss! This will make sparks fly around, and give you a spark dart. Note that this dart does nothing aside from let you damage the boss.

Then, wait until it uses attack 4, and make it hit the walls of the screen.

You will see a glowing green spot on its back. Shoot it and....

BOOM! Damage dealt! Do this 9 more times and win!

Arrival
You end up at ==ENCODE== labs, and the sentry guard finds you. You must battle him!

Win
You see him blowing up in flames, and you collect the materials you need.

Lose
He goes into hyperdrive by a unknown virus, and shoots beams everywhere destroying everything. Game over.

Trivia
Each 3 seconds your figting he he spawns 3 fireballers!

Wow. This trivia is short.