Stubborn Strategy - Btd6 Hidden Achievement Guide

Tutorial on how to get the hidden achievement stubborn strategy.
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Song:
Song: Disfigure - Blank [NCS Release]
Music provided by NoCopyrightSounds
Free Download/Stream: ncs.io/blank
Watch: • Disfigure - Blank | Me...

[@VeXThunder7340]

how many times do you have to do it?

[@JaukG]

100 Times