B.E.E.

The B.E.E., or Blimp of Egregious Experimentalization, is a strange bloon that acts like a honeybee. It has 180 health, and pops into 50 Yellow Bloons, giving it an RBEE (lel) of 380. It travels fairly fast, at 1.8 times the speed of a Red Bloon. Besides this, it also has a few attacks/abilties:

Le Abilities
Hivemind: All B.E.E.s on screen group together, and attack with the same attacks at about the same time. This is passive.

Stinger: Fires a small bolt that, while reducing the health of this blimp by 10, deals 10 damage to any tower/agent it hits. This can pass through up to 3 towers.

Release the Swarm: Any Beekeeper bees stop attacking bloons and attack non-Beekeeper towers. This is, surprisingly, not passive. Bee stings deal 0.5 damage to normal towers, and 0.005 damage to buildings and machines.