Spike-O-Pult (BTD4)

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

- BTD 4 Description

The Spike-O-Pult is an upgrade for the Dart Monkey that appears in BTD4. It changes the projectile of the Dart Monkey to a large spiked ball with higher pierce but slower attack rate.

Bloons TD 4
In Bloons TD 4 and Bloons TD 4 Expansion, this upgrade is the Dart Monkey's third upgrade. On Easy this upgrade costs $255, on Medium it costs $300, and on Hard it costs $325. The Triple Shot upgrade from Bloons TD 3 was renamed for Bloons TD 4. It became the Dart Monkey's 4th upgrade and was called Multi Shot. Place these towers at the end of long lines with target priority set to last for maximum effectiveness. Spiked balls will not explode if you have Splodey Darts.

General

 * The Spike-o-pult appears to be based on the onager, a type of catapult that uses tension to power the shot. The mangolnel is named after a wild species of donkey because of the intense force with which the projectile is shot, causing the device to jump forward every shot.
 * The way the monkey holds the Spike-O-Pult changes as the Bloons TD series progresses. In Bloons TD 3, he holds it with his right hand, in Bloons TD 4 he holds it with his tail, and in Bloons TD 5, he holds it with both hands.
 * The Spike-O-Pult is an upgrade to the Dart Monkey, but in BTD3 and before the Spike-O-Pult was its own tower. This makes it the first tower to become an upgrade for another tower.
 * The Spike-O-Pult upgrade shrinks the Dart Monkey operating it.