White Hot Spikes



White Hot Spikes is the 2nd upgrade of path 1 for the Spike Factory in BTD5. It costs $765 on Easy, $900 on Medium, $970 on Hard. It enables the spike factory to pop Lead Bloons with its road spikes. They can also pop frozen bloons if the Spike Factory is nearby an Ice Tower. The spikes turn red at their tips. The ability to pop leads only requires the first tack to break through the lead layer and thus, puts the lead-popping ability of the other tacks in the spike into waste. It is recommended to get the first two upgrades of path 2 before getting this one.

Trivia

 * Even though it's called white hot spikes, the spikes appear reddish-orange, although the tips actually are white.
 * The bottom of the spikes aren't hot, because they are black and not red or white.