Monkey Knowledge (BTD6)

For Monkey Knowledge Packs from Bloons Monkey City, see Monkey Knowledge Packs.

Monkey Knowledge is an upgrade system within Bloons TD 6. This menu has upgrade trees for Primary towers, Military towers, Magic towers, Support towers, Heroes, and Powers. Each tree features many upgrades for monkeys that can be unlocked with Knowledge Points. After level 30, every level up will reward the player with 1 Knowledge Point to use here. Some upgrades require a certain amount of points to be spent in the tree before taken and are lower on their tree. Previous upgrades have to be unlocked to unlock upgrades further down the tree that are more powerful. More knowledge points may be earned through achievements.

As of Version 2.0.0, Monkey Knowledge can also be toggled on or off.

Version 3.0.0 has been the first version to add a new Monkey Knowledge, being the point There Can Be Only One, in the Magic Skill Tree.

Monkey Knowledge main menu, featuring 6 categories of upgrades

Primary Knowledge tree

Military Knowledge tree (cut off)

Magic Knowledge tree before 3.0 update

Magic Knowledge tree after 3.0 update

Support Knowledge tree

Heroes Knowledge tree

Powers Knowledge tree

Knowledge Rewards

The structure of the overall knowledge trees are difficult to understand at first, but with enough patience, it is possible to fully understand them.

It costs one Knowledge Point to access a new upgrade. For further upgrades, it may require a specific number of points in that tree before unlocking the upgrade, so note them in the tables.

Primary Knowledge

Name	Prerequisites	Description	Other notes
Fast Tack Attacks	No additional requirement	Tack Shooter attack speed increased by 8%.	-
Increased Lifespan	No additional requirement	Longer projectile lifespan for Dart Monkey, Bomb Shooter, Tack Shooter and Glue Gunner.	Does not apply to Ice Monkey's higher Path-3 upgrades, such as Cryo Cannon. (?)
Extra Dart Pops	No additional requirement	Dart Monkeys get +1 pierce to all shots.	Base pierce increased to 3 from 2.
Poppy Blades	Hard Tacks	Blade Shooter upgrade gets +2 pierce.	Blade Shooter pops 4 bloons per shot instead of 2.
Hard Tacks	Fast Tack Attacks	Tack Shooter tacks can pop Frozen Bloons.	-
Fast Glue	Fast Tack Attacks	Glue Gunner 10% increased attack speed.	-
Fraggy Frags	Increased Lifespan	Frag bombs get 2 extra frags.	There are now 10 Frags in each bomb.
Cheap 'Rangs	Increased Lifespan	Base cost of Boomerang Thrower reduced by 50.	Discount is applied after price multiplier for other difficulties: the cost will always be $50 less than normal regardless of the difficulty.
Crossbow Reach	Extra Dart Pops	Crossbow range increased.	Increases range by TBA% from TBA%.
Big Inferno	5 Knowledge Points Poppy Blades	Inferno Ring upgrade gets +3 burst radius.	-
Icy Chill	5 Knowledge Points Hard Tacks	Freeze radius slightly increased.	Increases range by TBA%.
More Splatty Glue	5 Knowledge Points Fast Glue	Glue Splatter can affect up to 8 Bloons per shot.	Increases Glue Splatter effect by 2.  Increases the splash effect on Bloon Solver if Glue Splatter is purchased from 16 to 18.
Budget Clusters	5 Knowledge Points Fraggy Bombs	Bomb Shooter's Cluster Bombs cost reduced by 100.	Discount is applied after price multiplier for other difficulties: the cost will always be $100 less than normal regardless of the difficulty.
Extra Bounce	5 Knowledge Points Cheap 'Rangs	Increase Boomerang Ricochet to bounce up to 80 times.	Increases the pierce of ricocheting Glaives, including M.O.A.R Glaives and Glaive Lord, by 30.
4 And 4	5 Knowledge Points Crossbow Reach	Dart Monkey's triple shot gets 4 darts every 4th shot.	-
Force vs Force	5 Knowledge Points Crossbow Reach	Juggernaut does 3 damage per shot to MOAB-Class Bloons.	Also applies to sub-projectiles from the Ultra-Juggernaut.
So... Cold...	8 Knowledge Points Icy Chill	Ice Monkey's Permafrost upgrade slows by 60%.	Increases effect by TBA% from TBA%.
Aviation Grade Glue	8 Knowledge Points More Splatty Glue	MOAB Glue slows more than normal.	Increases effect by TBA% from TBA%.
Mega Mauler	Aviation Grade Glue Hard Press	MOAB Mauler does more damage per hit.	Increases damage by 1.
Hard Press	8 Knowledge Points Extra Bounce	MOAB Press pusher back 30% further.	-
Master Double Cross	8 Knowledge Points 4 And 4	Allows you to have TWO Crossbow Masters.	Allows for the purchase of two Crossbow Masters.
Big Cryo Blast	10 Knowledge Points So... Cold...	Cryo Cannon gets increase blast radius.	Increases effect by TBA% from TBA%.
Hypothermia	10 Knowledge Points So... Cold...	Snowstorm can freeze White and Zebra Bloons.	Reduces the utility of the Absolute Zero upgrade.
Cheaper Solution	10 Knowledge Points Aviation Grade Glue	Bloon Liquifier cost reduced by 1000.	Discount is applied after price multiplier for other difficulties: the cost will always be $1000 less than normal regardless of the difficulty.
Violent Impact	10 Knowledge Points Budget Clusters	Bomb Shooter's Bloon Impact stuns for 25% longer.	Increases effect to TBA from TBA.
Long Turbo	10 Knowledge Points Hard Press	Boomerang Turbo Charge ability lasts 15 seconds.	Increases effect by 5 seconds.
Bonus Monkey!	10 Knowledge Points Master Double Cross	Start each game with a free Dart Monkey!	Each game starts with a Free Dart Monkey, a similar effect to the Monkey City upgrade.
More Cash	Cheaper Solution Bonus Monkey!	Increase starting cash by 200.	This means that you start with $850 on all game modes except Half Cash where players only get $425, and CHIMPS where players get $650, as Monkey Knowledge is turned off there.

Military Knowledge

Name	Prerequisites	Description	Other notes
Naval Upgrades	No additional requirement	Monkey Buccaneer and Monkey Sub can pop +1 Bloon per shot.	Increases pierce of Monkey Buccaneers to 5 from 4. Increases Monkey Sub pierce to 2 from 1.
Airforce Upgrades	No additional requirement	Monkey Ace and Heli Pilot can pop +1 Bloon per shot.	Increases pierce of Monkey Ace to 6 from 5 per dart. Increases Heli Pilot pierce to 4 from 3 per dart.
Elite Military Training	No additional requirement	All Military Monkeys get a one-off +1000 XP and earn XP in-game 5% faster permanently.	This Knowledge has no effect if all Military upgrades are already unlocked, besides unlocking subsequent Knowledge.
Big Bunch	Naval Upgrades	Grape Shot shoots 6 grapes.	Also applies to Hot Shot.
Accelerated Aerodarts	Airforce Upgrades	Darts from Monkey Aces fly faster.	Darts fly TBA% faster.
Ceramic Shock	Elite Military Training	Sniper hits on Ceramic Bloons slow them down briefly.	Slow effect is the same for all calibres of Path 1. Slow effect is applied to Ceramics hit with Shrapnel Shot projectiles.
Breaking Ballistic	4 Knowledge Points Naval Upgrades	Ballistic Missiles do more damage to Ceramic Bloons.	Deals 6 damage instead of 5 to Ceramic Bloons.
Faster Takedowns	4 Knowledge Points Big Bunch	MOAB Takedown Ability has 5 second faster cooldown.	Decreases the cooldown of MOAB Takedown to 55 seconds from 60 seconds.
Targeted Pineapples	4 Knowledge Points Accelerated Aerodarts	Pineapples are only dropped near tracks.	Also affects Bomber Ace's bombs.
Rapid Razors	4 Knowledge Points Airforce Upgrades	Razor Rotors pops Bloons faster.	Pops 25% times faster than normal.
Cheaper Maiming	4 Knowledge Points Ceramic Shock	Maim MOAB cost reduced by 1000.	Discount is applied after price multiplier for other difficulties: the cost will always be $1000 less than normal regardless of the difficulty.
Quad Burst	8 Knowledge Points Breaking Ballistic	Airburst Darts split into 4 instead of 3.	-
Trade Agreements	8 Knowledge Points Faster Takedowns	Merchantmen generates +$20 per round.	Also applies to Favored Trades and Trade Empire.
Gun Coolant	8 Knowledge Points Targeted Pineapples	Monkey Aces attack 10% faster.	-
Aeronautic Subsidy	Gun Coolant	Monkey Ace tier 5 upgrades cost 10% less.	Will subsequently cost $36,000, $31,500 and $108,000, down from $40,000, $35,000, and $120,000 for Path 1, Path 2 and Path 3 on Medium respectively.
Charged Chinooks	Rapid Razors	Chinook Activated Abilities give 25% more lives and cash.	-
Master Defender	Cheaper Maiming	Elite Defender has no cooldown.	-
Sub Admiral	14 Knowledge Points Quad Burst	Sub Commander affects all Monkey Subs on screen.	-
Military Conscription	14 Knowledge Points Trade Agreements	Purchase price of first Military Monkey each game is halved.	Once any Military Monkey is purchased, all the other halved bonuses are voided, even if that specific tower was not used. Will subsequently cost $175 Sniper Monkey, $160 Monkey Sub, $275 Monkey Buccaneer, $400 Monkey Ace and $750 Heli Pilot on Medium difficulty.
Advanced Logistics	14 Knowledge Points Aeronautic Subsidy Charged Chinooks	All Military Monkeys base costs reduced by 5%.	Will subsequently cost $335(?) Sniper Monkey, $310(?) Monkey Sub, $525(?) Monkey Buccaneer, $760(?) Monkey Ace and $1,425(?) Heli Pilot on Medium difficulty.
Big Bloon Sabotage	Sub Admiral Master Defender	All MOAB-Class Bloons spawn in a partially damaged state.	Decreases the health of all newly-spawned MOAB-Class Bloons by 10%.

Magic Knowledge

Name	Prerequisites	Description	Other notes
Super Range	No additional requirement	Increased range for the Super Range upgrade	Increases range by TBA% from original.
Lingering Magic	No additional requirement	Longer projectile lifespan for Wizard Monkey, Super Monkey, Ninja Monkey, and Druid.	-
Magic Tricks	No additional requirement	Guided Magic and Intense Magic cost 25 less.	Discount is applied after price multiplier for other difficulties: the costs will always be $25 less than normal regardless of the difficulty.
Cheaper Doubles	Super Range	Ninja Double Shot cost reduced by 100.	Discount is applied after price multiplier for other difficulties: the costs will always be $100 less than normal regardless of the difficulty.
Heavy Knockback	Super Range	Bloons hit by Knockback from Super Monkey are knocked back slightly harder.	Increases knockback potency by TBA%.
Hot Magic	Lingering Magic	All Magic type towers can pop Frozen Bloons.	Reduces the utility of the Hard Thorns upgrade.
Speedy Brewing	Magic Tricks	All Alchemist's potions have 5% faster reload time.	-
Mo' Monkey Money	Speedy Brewing	Earn 10% extra Monkey Money from game wins on any difficulty.	Increases Monkey Money rewards for first time completion, replay completion and Daily Challenges. Daily Challenge bonus reward only applies to the original map reward; the Monkey Money reward for a Daily Challenge is the new original map reward plus unchanged Daily Challenge reward. Bonus Monkey Money is also rounded down to one unit (225, for example, becomes 247, not 248). This does not apply to CHIMPS.
Diversion Tactics	4 Knowledge Points Cheaper Doubles	Increased chance to distract Bloons from Distraction upgrade.	Increases chance of Distration effect occuring by TBA%, to a total of TBA%.
Strike Down The False	4 Knowledge Points Heavy Knockback	Sun Avatar can pop Purple Bloons.	-
Warm Oak	4 Knowledge Points Hot Magic	Heart of Oak cost reduced by 100.	Discount is applied after price multiplier for other difficulties: the costs will always be $100 less than normal regardless of the difficulty.
Flame Jet	4 Knowledge Points Hot Magic	Dragon's Breath flame projectiles move much faster.	Projectiles fly TBA% faster.
Strong Tonic	4 Knowledge Points Speedy Brewing	Transforming Tonic lasts longer.	Increases duration from TBA seconds to TBA seocnds.
Cold Front	4 Knowledge Points Warm Oak	Ball Lightning hits have a chance to freeze Bloons after doing damage.	Freeze chance is TBA%.
Arcane Impale	4 Knowledge Points Flame Jet	Arcane Spike does extra damage to MOAB-Class and Ceramic Bloons.	Deals 17 damage instead of 16 to MOAB-Class Bloons. Deals 6 damage instead of 5 to Ceramic Bloons.
Acid Stability	4 Knowledge Points Strong Tonic	Alchemists' acid pools last 5 second longer.	Acid pools now lasts 12 seconds each instead of 7.
Deadly Tranquility	8 Knowledge Points Diversion Tactics	Bloonjitsu and Grandmaster Ninja get an extra shuriken per throw.	Increases Bloonjitsu shuriken count to 6. Increases Grandmaster Ninja shuriken count to 9.
There Can Be Only One	8 Knowledge Points Strike Down The False	There can be only one.	Added in 3.0 update Allows the True Sun God to transform into an extra-powerful dark god through an independant sacrifice of The Anti-Bloon and Legend of the Night after being upgraded into True Sun God - keep them out of the Sun Temple's range when upgrading it to True Sun God. Does not work in Sandbox, disables Anti-Bloon and Legend of the Night upgrades.
Mana Shield	8 Knowledge Points Arcane Impale	Creates a special shield that absorbs up to 25 lives for free. Recharges up to 5 lives at the start of each round.	Mana Shield is also usable in Impoppable Mode, despite Impoppable Mode stating that no lives are to be lost.

Support Knowledge

Name	Prerequisites	Description	Other notes
Flat Pack Buildings	No additional requirement	Farm and Village cost 2% less and sell for 2% more.	Discount and sell values are additive, Making the Sellback 72% of the original cost of the tower and all upgrades.
One More Spike	No additional requirement	Spike Factory stacks get +1 spike.	Spike stacks can pop 6 bloons each from 5, Bigger Stacks to 11 from 10, Spiked Balls/Spiked Mines/Super Mines to 16 from 15, Deadly Spikes to 12 from 10 and Perma-Spikes to 510 (610) from 500 (600).
Insider Trades	Flat Pack Buildings	Monkey Business discount increases by 2%	Increases discount to 12% from 10%.
More Valuable Bananas	Flat Pack Buildings	Valuable Bananas upgrade increases to 30%.	This is a 5% increase from what the upgrade usually provides.
Bigger Banks	3 Knowledge Points Insider Trades	Monkey Banks can hold 2500 extra money.	Increases maximum capacity to $12,500. Also applies to IMF Loan and Monkey-Nomics.
Farm Subsidy	3 Knowledge Points More Valuable Bananas	First Banana Farm each game costs 100 less	Once first Banana Farm is bought, this discount will be voided. The cost decrease by $100 applies to Medium Difficulty cost; difficulty multipliers are applied after.
Monkey Education	3 Knowledge Points	All Monkeys XP earn rate increased by 8%.	Applies to Experience for tower upgrades and Heroes in game level ups.
Backroom Deals	3 Knowledge Points Bigger Banks	IMF Loan is increased to $12000 and repay rate is 40%.	The increase in profit also applies to Monkey-Nomics.
Inalnd Revenue Streams	3 Knowledge Points Farm Subsidy	Monkey Town cash bonus increased by 10%.	Increases cash bonus for Bloon pops from 50% to 60%
Very Shreddy	3 Knowledge Points One More Spike	MOAB SHREDR spkies do +1 extra damage to MOAB-Class Bloons.	Causes a single stack to deal 20 damage to MOABs, with Bigger Stacks dealing 40 damage.
To Arms!	3 Knowledge Points Monkey Education	Call to Arms duration increased by 3 seconds.	Increases duration to 13 seconds. Also applies to Homeland Defense, with an 18 seconds (?).
Better Sell Deals	8 Knowledge Points Backroom Deals	All Monkeys sell for 5% more.	Increases sell potency from 70% to 75%.
Hi-Value Mines	8 Knowledge Points Very Shreddy	Spiked Mines cost reduced by 1500.	Discount is applied after price multiplier for other difficulties: the costs will always be $1500 less than normal regardless of the difficulty.
Veteran Monkey Training	8 Knowledge Points To Arms!	All Monkeys reload time reduced by 3%.	Attack speed of all towers increased by 3%.
Global Ability Cooldowns	8 Knowledge Points To Arms!	All Ability cooldowns for all Monkeys reduced by 3%.	-

Heroes Knowledge

Name	Prerequisites	Description	Other notes
Heroic Reach	No additional requirement	All heroes get slightly increased range.	-
More 'Splody	No additional requirement	Heroes' explosives can pop 2 more Bloons per shot.	-
Ability Discipline	No additional requirement	Hero Level 10 Ability cooldowns reduced by 10%.	-
Heroic Velocity	​Heroic Reach​	All Heroes' projectile speeds increased slightly.	-
Scholarships	​More 'Splody​	Hero training costs reduced by 10%	-
Quick Hands	3 Knowledge Points Heroic Velocity​	Makes all heroes attack 4% faster.	-
Self Taught Heroes	3 Knowledge Points Scholarships​	Heroes earn XP 10% faster.	-
Ability Master	3 Knowledge Points Ability Discipline​	At level 20, Heroes' level 3 Ability cooldown reduced by 40%.	-
Hero Favors	Quick Hands​ Self Taught Heroes​	Heroes' base cost reduced by 10%.	-
Big Bloon Blueprints	​Ability Master​	Heroes do +1 extra damage to MOAB-Class Bloons with their base attack.	-
Empowered Heroes	​Hero Favors​	Heroes start each game at level 3.	-

Powers Knowledge

Name	Prerequisites	Description	Other notes
Bigger Camo Trap	No additional requirements	Camo Trap lasts for 600 Bloons.	Camo Trap increases from 500 to 600. Formerly 100 to 200, until Version 2.0 buffs to the original Camo Trap (along with the respective Knowledge).
Just One More	No additional requirements	Road Spike piles have 21 spikes in them.	Used to buff to 11 spikes, but since the Road Spikes increased its spike amount from 10 to 20 in Version 2.0, the Knowledge has changed too.
Cheaper Lakes	No additional requirements	Portable Lakes costs 40.	-
Mauling MOAB Mines	Bigger Camo Trap	MOAB mine does extra damage.	Increases damage by TBA from TBA.
Longer Time Stop	Just One More	Time Stop lasts longer than normal.	Increases effect by TBA from TBA.
Budget Pontoons	​Cheaper Lakes​	Pontoon costs 40.	-
Supersize Glue Trap	3 Knowledge Points Mauling MOAB Mines​	Glue Trap can slow MOAB-Class Bloons, though the bigger the bloon, the more glue is used up.	A MOAB consumes TBA, aDDT consumes TBA, a BFB consumes TBA, a ZOMG consumes, a BAD consumes TBA.
Longer Boosts	3 Knowledge Points Longer Time Stop	Monkey Boost lasts longer.	Increases effect by TBA from TBA.
Powerful Monkey Storm	3 Knowledge Points Budget Pontoons​ Longer Boosts​	Super Monkey Storm does more damage.	Increases damage by TBA from TBA.
Pre-Game Prep	Longer Boosts​	Start each game with a pile of permanent Road Spikes at the end of the track.	This perk is able to add more than one pile of Road Spikes, adding a single pile for each exit available. e.g. 4 piles of spikes for #Ouch , one for each track
Fit Farmer	​Powerful Monkey Storm​	Monkey Farmers have larger radius.	Increases range by TBA%.
Budget Cash Drops	​Fit Farmer​	Cash Drops cost 20 less.	Cash Drops are now 180 each.
Supa-Thrive	​Fit Farmer​	Thrive adds 30% instead of 25%.	-

Gallery

General

Unlocking Rank 30 and the below messagebox introducing Monkey Knowledge

Gwendolin in Village without Heroic Reach

Gwendolin in Village with Heroic Reach

Grape Shot shoots 6 grapes from Big Bunch

Enable Monkey Knowledge option, introduced in Version 2.0

The Monkey Knowledge shown toggled on, as seen in the main menu

Monkey Education effects hero's EXP gain in game.

1-2-0 Sub with Quad Burst

Mana Shield, Bonus Monkey and More Cash in play

Up to two Crossbow Masters with Master Double Cross

Mo' Monkey Money effects

Winning Easy Intermediate with Mo' Monkey Money

Winning Impoppable Intermediate with Mo' Monkey Money

Winning Easy Expert with Mo' Monkey Money

Trivia

• The Monkey Engineer is the image for the support tower knowledge, even though it doesn't appear as a tower in the game. However, it has been confirmed to be released at some point in the future.
• "Big Bloon Sabotage" is the same name as a Monkey Lab upgrade in Bloons Tower Defense 5. It retains a similar effect, reducing the health of the bloons. Note that is does NOT decrease the bloons speed.
• In order to obtain all upgrades for all the categories of Monkey Knowledge, the player must achieve Level 138, assuming that no extra packs have been purchased or earned from achievements or other sources.
• It is possible to rank up straight to Rank 30 by going to the Monkey Knowledge menu and tapping the option that unlocks Rank 30 immediately. However, it costs $9.99 USD, and level 30 can often be reached very quickly.
• The "Requires X Points" is can be ambiguous. However, what "Requires X Points" means is that a certain number of Monkey Knowledge invested in a specific Monkey Knowledge group is required to unlock the upgrade that requires X points, not that it can be unlocked upon the Xth investment into the specific Monkey Knowledge group, like requires 3 points means that there has to 3 points invested above the line.
• It takes a bare minimum of 9 Monkey Knowledge Points to unlock Mana Shield.
  • One possible method to do so is to purchase Lingering Magic, Magic Tricks, Speedy Brewing, Mo' Monkey Money, Hot Magic, Flame Jet, Arcane Impale, and then Mana Shield in that order.
• It takes a bare minimum of 13 Monkey Knowledge Points to unlock More Cash.
  • One possible method to do so is to purchase Fast Tack Attacks, Increased Lifespan, Extra Dart Pops, Fast Glue, Crossbow Reach, More Splatty Glue, 4 And 4, Cheap 'Rangs, Aviation Grade Glue, Master Double Cross, Cheaper Solution, Bonus Monkey!, and then More Cash in that order.
• It takes a bare minimum of 16 Monkey Knowledge Points to unlock Big Bloon Sabotage.