S.A.V.A.G.E.

SAVAGE is a special boss that is unlocked by doing the following things:

The steps

 * 1) Reach round 1,000 in C.H.I.M.P.S. Mode
 * 2) Pop 1,000,000 Bloons
 * 3) Reach max level
 * 4) Unlock all heroes + tier 5 upgrades
 * 5) Use a prodigious item

Cutscene
Before Round 500 starts, the towers will see a red bloon. After they pop it, a Magnitude 10 earthquake shakes the entier screen (in the game, not in Real Life). And after 10 seconds, SAVAGE will challange you.

Attacks

 * health drain: your lives will drain every 5 seconds, the ability can be used only between 1,000,000 RBE to 900,5000 RBE.
 * Strike!: A lightning bolt will strike a random tower, the attack temporary disabled the tower for 1 minutes
 * Pew Pew Pew!: the blimp will shoot at a single hero 3 times, the hero will be disabled for 1 minutes
 * IBlimp friends: summons 10 IBlimps to defend itself from being damaged
 * Boom Boom Boom!: 3 explosions will destroy 5 monkeys on screen
 * X.X.X.L summoner: 5 X.X.X.L. Bloons will spawn in order to protect the boss
 * Cash stealing: 100 Cash will be stolen every 1 minutes, can be use only when the blimp has 250,000 RBE to 240,000 RBE
 * Sandstorm: a sandstorm will begin when the blimp has 100,000 RBE or less
 * Final blimp: a Fortified B.A.D. will spawn
 * Get out while you still can!: The blimp goes in a normal speed, you have 10 minutes to defeat it.