Brutal Floating Behemoth
Brutal Floating Behemoth


Bloons Tower Defense 4
Bloons Tower Defense 5 (Deluxe)
Bloons Monkey City


700 (as of BTD5)


Very Slow


Massive Ornary Air Blimp


Zeppelin of Mighty Gargantuaness

Lives Lost

2884 (BTD4)
3164 (as of BTD5)

First Wave

85 (BTD5)

BFB Icon

The Brutal Floating Behemoth (or BFB) is a boss featured later in the Bloons Tower Defense series. It has 700 health in Bloons Tower Defense 5. It moves very slowly, being the slowest, largest and strongest attacker until the Zeppelin of Mighty Gargantuaness makes its debut. Without buying enough lives or earning enough with the Healthy Bananas premium upgrade for the Banana Farm (which is possible), letting one through depletes all of the player's lives, resulting in a game over. In Bloons Tower Defense 5 it appears on Round 60. Its first wave varies by tile or attack strength in Bloons Monkey City, though it will generally appear starting from Round 22. Upon being popped, it releases four Masive Ornary Air Blimps.


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