Kingdom Rush Alliance Impossible Hero Challenge - 4. Emerald Treetops Iron - Therien

Part of my Impossible Hero Challenge for Kingdom Rush Alliance, where I do every map in every mode (campaign, heroic, and iron) with every hero on Impossible difficulty, with No Lives Lost in campaign mode. All heroes are level 10 and all upgrades are applied, with the exception of the Favorite Customer upgrade so that my runs don't have any RNG-dependence. This is the Steam version, but I'm only using towers that are free in the mobile version so that it's applicable for players there as well.
Check out the associated blog post for hero grades and commentary:
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