Spiked Ball Factory

"Modified to produce heavy but viciously sharp spiked balls instead of regular spikes. Do extra damage to Ceramic Bloons."

- BTD5 Official Description

 is the 3rd upgrade for Path 1 of the Spike Factory in Bloons Tower Defense 5, costing $2040 on Easy, $2400 on Medium and $2590 on Hard. It makes the Spike Factory produce vicious, spiked balls that pop 16 bloons each and do 3x damage to Ceramic Bloons. The spiked balls are black balls with orange spikes coming from them.

Trivia

 * With Tack Awesomizer, the Spike Ball Factory is easily stronger than the upgrades on Path 2.