Welcome to the BloonsGuide.com walkthrough for today's (December 10th, 2023) Bloons TD 6 Advanced Challenge: "Pro" by Tewtiy!
In this short guide, you'll learn how to beat the Advanced Challenge, and you'll better understand why this strategy works.
Let's get started.
The Solution
The Tower we're going to use to solve this challenge is the Dart Monkey.

Throws a single dart at nearby bloons. Short range and low pierce but cheap.

$215
The Challenge
To start the challenge, place two Dart Monkeys on the map as you see in the screenshot below and upgrade them both to 0 / 1 / 1, or Quick Shots in the middle path and Long Range Darts in the bottom path.
Note: you'll notice the Dart Monkey in my screenshot is upgraded to 0 / 2 / 1. Don't worry, we'll upgrade to that after Round 6.
And for the second Dart Monkey:
Then press play.
These two should be able to easily take out Round 6. Then, at the end of Round 6, upgrade the first Dart Monkey to 0 / 2 / 1.
And that should be enough to take this challenge down!
Why This Works
There aren't many hidden mechanics or secret tips for this challenge.
The multi-Dart-Monkey start for CHIMPS mode, however, is quite popular for harder maps (like multi-lane maps).
Dart Monkeys (and their initial upgrades) are cheap - this means that you can typically start with a few Dart Monkeys across the map to ensure you have coverage in multiple places early in the game. This allows you to save gold for better towers. Then, once you have gold to purchase more valuable towers, you can replace the Dart Monkeys.
Other Solutions
You can also beat this challenge with:
- 0 / 0 / 1 Ninja and a 0 / 0 / 0 Dart Monkey
- 4 Dart Monkeys at 0 / 0 / 0
- 2 Monkey Subs (one at 1 / 0 / 0 and one at 0 / 0 / 0) and a Dart Monkey at 0 / 0 / 0
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Thanks for reading, and happy popping.