For the Dart Monkey upgrade in later BTD games, see Spike-O-Pult.
Hurls a huge spiked ball that pops everything it touches. Can upgrade range, speed and multi-shot
~ Description

The original Spike-O-Pult in BTD3

The Spike-o-pult is a tower introduced in Bloons TD 3 that launches a spiked ball with 1 damage and 6 pierce every 1.65 seconds. It is best used against large, clustered groups of low-ranking bloons. Upgrades increase its range, attack rate, pierce, and projectile size.

In later BTD games, the Spike-o-pult appears as an upgrade for the Dart Monkey.

Upgrades[edit | edit source]

Easy Medium Hard
Tower Cost 510 610 650
Total Sell Amount 1776 2028 2120
Tower Cost 460 540 565
Total Sell Amount 1664 1952 2052
Upgrade 1 Upgrade 2
Name Description Cost (Easy/Medium/Hard) Name Description Cost (Easy/Medium/Hard)
Path 1 Longer Range "Increases maximum range of Spike-o-pult."

~17.9% range increase.

Flash: 215/255/270

Mobile: 215/250/265

Juggernaut "Spike-o-pult balls roll much further."

+14 (20 total) pierce. Extra ceramic damage(?)

Flash: 700/840/890

Mobile: 700/825/865

Path 2 Faster Reload "Can shoot faster than normal."

82% (1.35s) reload speed.

Flash: 215/255/270

Mobile: 215/250/265

Multi Shot "Shoots 3 spikey balls at once!"

Increases projectile size (does not result in additional projectiles).

Flash: 490/585/620

Mobile: 490/575/605

Trivia[edit | edit source]

  • The Longer Range upgrade does not change the tower's appearance.
  • The Multi Shot and Juggernaut upgrades also reappear in later BTD games as upgrades for the Dart Monkey (with Multi Shot becoming Triple Shot in BTD4 and Triple Darts in BTD5 and later).

Gallery[edit | edit source]

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