Not to be confused with Ghost Bloon, a bloon property from Bloons Adventure Time TD.

The Ghost Bloon is a Bloon that only appears in Sandbox Mode in Bloons Tower Defense 6. It is transparent, with a dotted outline. The Ghost Bloon cannot be encountered in any game mode besides Sandbox Mode; the main purpose of this Bloon is for testing how much popping power a tower has, as well as for testing the activating of 'lost life' upgrades and abilities.


This Bloon moves as fast as a Red Bloon, and takes 10,000,000 hits to pop. Leaking the bloon will cost only 1 life.


The Ghost Bloon can be destroyed instantly by certain towers, such as the following:

Additionally, some towers have the means to eventually destroy the Ghost Bloon single-handedly:



  • It is poppable by damaging it 10 million times, but it would be a waste of time to try and do so.
  • It is currently not possible to spawn camo, regrow or fortified versions.
  • Popping it will give the tower 9,999,999 pops (provided it was not previously damaged).
  • Leaking this Bloon will only deduct one life, concluding this Bloon has 1 RBE.
  • This is the strongest bloon and the technically the bloon with the most layers. However note that monkeys with 'strong' targeting will target other bloons first, ignoring it until it is the final bloon on screen.
  • Having a tower pop roughly 215 of these bloons allows that tower to reach the maximum pop count of 2,147,483,647 (231−1) which is the higher number that can be stored in a 32-bit signed integer variable.
    • This is no longer the case in Version 9.0, since the pop limit is now lifted higher than the 32-bit maximum.
  • The actual name can be somewhat debatable, as the hotkeys menu on BTD6 Steam calls the Ghost Bloon "Test Bloon."

    Spawn "Test Bloon" from Hotkeys setting in BTD6 Steam. This actually just spawns the Ghost Bloon.

Video about the hero glitch being able to pop a ghost bloon.

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