Spike-O-Pult

"Gives the monkey a catapult that hurls giant spiked balls."

- Bloons Tower Defense 4 Description

Spike-O-Pult only appears as a stand-alone tower in Bloons TD 3. It was made an upgrade for the Dart Monkey in Bloons TD 4, Bloons TD 4 Expansion and Bloons TD 5. It is the 3rd upgrade for the Dart Monkey and costs 325 on Hard Difficulty. The Multi Shot upgrade from Bloons TD 3 was renamed for Bloons TD 4. It became the Dart Monkey's 4th upgrade and was called Triple Shot and costs 1080 on Hard Difficulty.

In Bloons TD 5, this upgrade is located on the first path. On easy difficulty this upgrade costs 255, on medium it costs 300 and on hard it costs 325. Place these towers at the end of long lines with target priority set to last for maximum effectiveness.

In Bloons TD 5 it is about 3x bigger than previous versions. Its top upgrade Juggernaut makes the ball bigger than a monkey and can pop infinite bloons as well as lead bloons, although it occasionally misses.

TABLE BASED ON iPHONE VERSION - Please add other versions to table

Trivia

 * It appears to be based off of the onager, a type of catapult that uses torsion to power the shot. The onager, aka. mangolnel, is named after a wild species of donkey, because of the intense force the projectile is shot.
 * The projectile fired by the Juggernaut upgrade is even bigger than a Dart Monkey.
 * In Bloons TD 3, Juggernaut made the balls go even further. In Bloons TD 5, it can pop lead bloons and pop half of a ceramic bloon.
 * Spike-O-Pult seems to be a play on the word catapult.