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Pre-BTD6

The Factory creates double size spike stacks
~ BTD4 upgrade description

Bigger Stacks is the second upgrade in Bloons TD 4 and the first upgrade in the Path 1 in Bloons TD 5 for the Spike Factory. It allows the Spike Factory to create double sized spike piles, each pile being able to pop 10 bloons instead of 5 per pile.

Prices[]

Gallery[]

Trivia[]

  • With Tack Awesomizer activated, the piles of spikes the factory produces will have 20 spikes in it.
  • Following a Version 22.0 nerf for Bigger Stacks in BTD6, the cost of Bigger Stacks has always increased by $100 with each generation of BTD games.
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