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Bloons Wiki
For the BTD6 counterpart functionally, see Maim MOAB.
For the BTD6 upgrade of the same name, see Cripple MOAB (BTD6).

Bullets from this tower temporarily take out propulsion systems of MOAB-class Bloons, immobilizing them for a short time.
~ BTD5 Flash description
Immobilizes MOAB class bloons for a short time.
~ BMC Steam description

Cripple MOAB is an upgrade for the Sniper Monkey that first appears in BTD5.

In BTD5, it is the final upgrade in Path 1 for the Sniper Monkey. It costs $10625 on Easy, $12500 on Medium, $13500 on Hard, and $15000 on Impoppable. It allows the monkey to temporarily stun M.O.A.B. Class bloons with its attack.

It stuns MOABs, BFBs, and DDTs for 2 seconds. While it can stun ZOMGs, the stun will last for only half a second. With continuous firing the Cripple Moab Sniper can completely stop a single MOAB or BFB but not a ZOMG (as it's resistant to slowdown, it's stunned for only 0.5s).

In BTDB Mobile, Cripple MOAB's damage increases from 20 to 45 and is much cheaper, at $5000.

In BTD6, the similarly functioning upgrade Maim MOAB also appears. The name "Cripple MOAB" instead becomes used for a Tier 5 upgrade that is much more powerful, stunning MOAB-class bloons for much longer as well as making them take extra damage.


In BTD5, this upgrade is unlocked in Rank 25, provided enough XP is unlocked for the Sniper. In BMC, Cripple MOAB has to be researched through the Gun Training Hall (Flash) or Rifle Training Hall (Mobile), and also requires the Special Building Anti-Materials Gun Lab to be built.


Main article: Cripple MOAB/Strategies


  • This is not advised to be used as a main defender, as it will not work well at all against crowds.
  • When a M.O.A.B. is popped by Cripple MOAB Sniper Monkeys, a horde of lower class bloons (red, blue, etc) will come out. This should be kept in mind when massing snipers.
    • M.O.A.B.s usually have a horde of Blue Bloons.
    • B.F.B.s usually have a horde of Green Bloons.
    • Z.O.M.G.s usually have a horde of Yellow Bloons.
  • In very rare circumstances, they might produce higher level bloons (Pinks, Zebras, or Rainbows). This happens if they take damage [from something that is NOT a Cripple MOAB] before being popped by a Cripple MOAB.
  • In Freeplay Mode, these work well. Using about 80 of them, each 20 set at each targetting setting, should help counteract freeplay speedup. Furthermore, it is also more effective to have a combination of snipers with and without the Faster Firing upgrade.

Version History (BTDB Mobile)[]

  • BUFF Cripple MOAB price decreased ($7000 → $5500)
  • BUFF Cripple MOAB base attack speed increased by +10%
  • BUFF Cripple MOAB damage increased (18 -> 30)
  • NERF Cripple MOAB no longer soaks damage through MOAB-class bloons
  • BUFF Cripple MOAB price decreased ($5,500 -> $5,000)
  • BUFF Cripple MOAB damage increased (30 -> 45)



  • It takes 12 Cripple MOABs to pop a M.O.A.B. instantly.
  • It takes about 50 Cripple MOABs to destroy a B.F.B. instantly.
  • It takes 50 shots from 50 Cripple MOABs to destroy a whole Z.O.M.G. (Including all that come from it).
  • Mutiple Cripple MOABs will shoot simultaneously at the start of a new round, therefore their slowing effects overlap each other.
  • It is advised to set target priority to strong in order to maximise the effects of this upgrade.
  • Cripple MOAB towers are worthless in earlier rounds because of the lack of MOAB-Class Bloons. However, with a smaller defense, the player probably wouldn't be able to upgrade it to this before round 50, when MOABs start arriving more regularly.
  • The addition to the sniper rifle at the end is a muzzle brake.
  • This is very useful for later rounds with many M.O.A.B.s.
  • A single Cripple MOAB can immobilize a Z.O.M.G. only for half second in fast forward. More snipers will stop the Z.O.M.G. for a longer time, although it is very difficult to detain a Z.O.M.G. indefinitely.
  • Strangely, the monkey loses its scar on its left eye from the previous upgrade icon.
  • The upgrade icon for Cripple MOAB strangely depicts a B.F.B. instead.
  • This is one of the ways to stun D.D.T.s.
  • If the priority of a Cripple MOAB Sniper Monkey is set to strong, one Cripple MOAB can easily keep a MOAB, BFB and D.D.T.s at a standstill and completely eliminate its first layer.
  • The BFB in the Cripple MOAB icon appears to have its right engine on fire.
  • The monkey now looks like it is wearing camouflage.
  • This can be hid behind a 3/0 monkey village.