Big Monkey Towers Option

"I like 'em big, I like 'em chunkay"

- "Chunky Monkeys" BTD6 achievement description

 is a setting for Bloons TD 6 that was added in Version 21.0. It is unlocked after beating a secret achievement called "Chunky Monkeys". This can be revealed by completing 10 games using only certain towers, generally with large footprints with some exceptions. Similarly to Big Bloon Option and Small Bloon Option, the effect is purely visual, and it can be enabled on CHIMPS Mode.

Earning the Achievement
Certain towers and heroes that are considered large can be used to unlock this achievement. Adding any non-qualifying tower will automatically disqualify the game counting towards this achievement. Powers appear to not count toward the total (farmer tested).

Specifically, only the following towers qualify for this achievement:
 * Monkey Buccaneer
 * Monkey Ace
 * Heli Pilot
 * Mortar Monkey
 * Super Monkey
 * Banana Farm
 * Monkey Village
 * Spike Factory
 * Cave Monkey

Only the following heroes qualify:
 * Captain Churchill
 * Pat Fusty

For the most optimal results, play on Standard Medium on any Beginner Map with water using only the hero Captain Churchill and any of the listed towers above. Start with a 0-0-0 Monkey Buccaneer, upgrade it to Grape Shot and Faster Shooting. Then continue finishing the challenge using only the listed towers above.

It is worth a note that Dartling Gunner will not work for progress towards this achievement because it actually has the footprint of a Boomerang Monkey, unlike BTD5. Similarly, Admiral Brickell, despite being on a boat, has the same footprint size as a Monkey Sub or by extension any other hero not mentioned above.

Trivia

 * As of Version 22.0, beating games on Easy Mode variants do not progress this achievement.
 * The icon for Big Monkey Towers Option is a Pat Fusty hand grabbing a hand-sized MOAB.
 * In order to try making progress towards unlocking Big Monkey Towers Option on CHIMPS Mode, it is only ever possible to do a 0-0-0 Buccaneer start, as Buccaneer is the only "large footprint" tower that fits the criteria for this achievement while still being affordable on Round 6 with $650 cash.
 * Just like with Small Monkey Towers Option, some of the towers have their animations being of normal size even with Big Monkey Towers Option in effect: Champion Sentries from Sentry Champion will turn to normal size when they become unstable and about to explode, and when a Sun Temple is upgraded to True Sun God, the Temple's head will get smaller as it summons the True Sun God. Also, when a big Pat Fusty grabs a normal-sized or small MOAB-Class Bloon, it will become big too.
 * The name of the achievement, "Chunky Monkeys", is a reference the popular Ben & Jerry's flavor, Chunky Monkey.
 * The description of the achievement is a reference to the Moto Moto song from Madagascar 2, which was a popular Internet meme.