Monkey Knowledge (BTD6)

For the mechanic in Bloons Monkey City, see Monkey Knowledge (BMC).

Monkey Knowledge (MK) is an enhancement system in Bloons TD 6. Starting at level 30, players can invest Monkey Money and Monkey Knowledge Points into one of six skill trees to unlock permanent enhancements. Most are enhancements to specific towers and upgrades, but some alter the fundamentals of the game itself, such as reducing the health of all MOAB-Class Bloons. Players can choose to disable all their active Monkey Knowledge and enable it again for no cost. Additionally, players can pay 2000 Monkey Money for a respec to re-invest their Monkey Knowledge Points into different trees. It is not required repay Monkey Money to unlock previously unlocked Monkey Knowledge.

Terminology

• "Monkey Knowledge" is both the term for the system as a whole and a term for the nodes that unlock perks. The nodes have also been called "Monkey Knowledge upgrades" and "Knowledge types" to distinguish them from the system.
• "Monkey Knowledge Points" are the currency used to unlock Monkey Knowledge upgrades. This term has also been used for the upgrades themselves on at least one occasion.

Mechanics

Tiers

Monkey Knowledge trees are split into six tiers; upgrades lower on the tree are of higher tiers. Tiers 3 and above require a certain number of Monkey Knowledge Points to be invested into the tree before they can be unlocked, and tiers 4 and above cost Monkey Money when purchased for the first time.

Tier	Primary	Military	Magic	Support	Heroes	Powers
3	×5	×4	×4	×3	×3	×3
4	×8 250	×8 250	×4 250	×3 250	×3 250	×3 250
5	×10 500	×8 500	×8 500	×8 500	×8 500	×3 500
6+	×10 1,000	×14 1,000	×8 1,000	×14 1,000	×8 1,000	×10 1,000

List of Monkey Knowledge

Icon	Name / description	MM Cost	Prerequisites
	Cheap 'Rangs Base cost of Boomerang Thrower[sic] reduced by 50.	Free	Increased Lifespan
	Crossbow Reach Crossbow range increased.	Free	Extra Dart Pops
	Extra Dart Pops Dart Monkeys get +1 pierce to all shots.	Free
	Fast Glue Glue Gunner 10% increased attack speed.	Free	Fast Tack Attacks
	Fast Tack Attacks Tack Shooter attack speed increased by 8%.	Free
	Fraggy Frags Frag bombs get 2 extra frags.	Free	Increased Lifespan
	Hard Tacks Tack Shooter tacks can pop Frozen Bloons.	Free	Fast Tack Attacks
	Increased Lifespan Longer projectile lifespan for Dart Monkey, Bomb Shooter, Tack Shooter and Glue Gunner.	Free
	Poppy Blades Blade Shooter upgrade gets +2 pierce.	Free	Hard Tacks
	4 and 4 Dart Monkey's triple shot gets 4 darts every 4th shot.	Free	5 invested, Crossbow Reach
	Ambidextrous 'Rangs Knowledge and training allows the Boomerang Monkey to Switch Hands as a targeting option and optimize boomerang attacks.	Free	5 invested, Extra Bounce
	Big Inferno Inferno Ring upgrade gets +3 burst radius.	Free	5 invested, Poppy Blades
	Budget Clusters Bomb Shooter's Cluster Bombs cost reduced by 100.	Free	5 invested, Fraggy Frags
	Extra Bounce Increases Boomerang Ricochet pierce by 30.	Free	5 invested, Cheap 'Rangs
	Force vs Force Juggernaut does +2 damage per shot to MOAB-Class Bloons.	Free	5 invested, Crossbow Reach
	Icy Chill Freeze radius slightly increased.	Free	5 invested, Hard Tacks
	More Splatty Glue Glue Splatter can affect 2 extra Bloons per shot.	Free	5 invested, Fast Glue
	Recurring 'Rangs Boomerangs that return to the Boomerang Monkey will be thrown a second time.	Free	5 invested, Extra Bounce
	Aviation Grade Glue MOAB Glue slows more than normal.	250	8 invested, More Splatty Glue
	Hard Press MOAB Press pushes back 30% further.	250	8 invested, Extra Bounce
	Master Double Cross Allows you to have TWO Crossbow Masters.	250	8 invested, 4 and 4
	Mega Mauler MOAB Mauler does more damage per hit.	250	8 invested, Aviation Grade Glue;Hard Press
	So... Cold... Ice Monkey's Permafrost upgrade slows by 60%.	250	8 invested, Icy Chill
	Big Cryo Blast Cryo Cannon gets increased blast radius.	500	10 invested, So... Cold...
	Bionic Augmentation While Turbo Charge is active, Bionic Boomerang is able to target Camo Bloons.	500	10 invested, Long Turbo
	Cheaper Solution Bloon Liquefier cost reduced by 1000.	500	10 invested, Aviation Grade Glue
	Come On Everybody! Primary towers attack 5% faster if all are below tier 3, and cost 5% less if all are tier 3 or 4.	500	10 invested, Master Double Cross
	Hypothermia Snowstorm freezes Bloons for longer.	500	10 invested, So... Cold...
	Long Turbo Boomerang Turbo Charge ability lasts 15 seconds.	500	10 invested, Hard Press
	Violent Impact Bomb Shooter's Bloon Impact stuns for 25% longer.	500	10 invested, Budget Clusters
	Bonus Glue Gunner Start each game with 1 free Glue Gunner! (Only 1 free Monkey Tower per game)	1,000	10 invested, Cheaper Solution
	Bonus Monkey! Start each game with 1 free Dart Monkey! (Only 1 free Monkey Tower per game)	1,000	10 invested, Come On Everybody!
	More Cash Increase starting cash by 200.	1,000	10 invested, Bonus Glue Gunner;Bonus Monkey!
	Accelerated Aerodarts Darts from Monkey Aces fly faster.	Free	Airforce Upgrades
	Airforce Upgrades Monkey Aces and Heli Pilots of Tier 3 or higher get +1 pierce per shot.	Free
	Big Bunch Grape Shot shoots 6 grapes.	Free	Naval Upgrades
	Ceramic Shock Sniper hits on Ceramic Bloons slow them down briefly.	Free	Elite Military Training
	Elite Military Training All Military Monkeys get a one-off +1000xp and earn xp in-game 5% faster permanently.	Free
	Emergency Unlock Activated ability: unlocks locked Dartling Gunners and boosts their swivel speed for a short time.	Free
	Naval Upgrades Monkey Buccaneer and Monkey Sub get +1 pierce per shot.	Free
	Breaking Ballistic Ballistic Missiles do more damage to Ceramic Bloons.	Free	4 invested, Naval Upgrades
	Cheaper Maiming Maim MOAB cost reduced by 1000.	Free	4 invested, Ceramic Shock
	Extra Burny Stuff Burny Stuff pops every second.	Free
	Faster Takedowns MOAB Takedown Ability has 5 second faster cooldown.	Free	4 invested, Big Bunch
	Gorgon Storm Hydra Rocket Storm stuns damaged Bloons for a short time.	Free	4 invested, Emergency Unlock
	Rapid Razors Razor Rotors pop Bloons faster.	Free	4 invested, Airforce Upgrades
	Targeted Pineapples Pineapples are only dropped near tracks.	Free	4 invested, Accelerated Aerodarts
	Cross the Streams Where Plasma or Doom beams cross on the track they create temporary plasma pools.	250	8 invested, Gorgon Storm
	Gun Coolant Monkey Aces attack 10% faster.	250	8 invested, Targeted Pineapples
	Paint Stripper Mortar shattering shells removes Fortification from DDT Bloons.	250	8 invested, Extra Burny Stuff
	Quad Burst Airburst Darts split into 4 instead of 3.	250	8 invested, Breaking Ballistic
	Trade Agreements Merchantman generates +$20 per round.	250	8 invested, Faster Takedowns
	Aeronautic Subsidy Monkey Ace tier 5 upgrades cost 10% less.	500	8 invested, Gun Coolant
	Budget Battery Artillery Battery cost reduced by 600.	500	8 invested, Paint Stripper
	Charged Chinooks Chinook Activated Abilities give 25% more lives and cash.	500	8 invested, Rapid Razors
	Flanking Maneuvers Sniper, Monkey Sub, & Monkey Buccaneer attack 10% faster when set to 'Last' targeting priority.	500	8 invested, Quad Burst;Trade Agreements
	Master Defender Elite Defender has no cooldown.	500	8 invested, Cheaper Maiming
	Wingmonkey Advanced flight pathing that coordinates multiple Monkey Aces on staggered attack runs.	500	8 invested, Aeronautic Subsidy
	Advanced Logistics All Military Monkeys base costs reduced by 5%.	1,000	14 invested, Aeronautic Subsidy;Door Gunner
	Big Bloon Sabotage All MOAB-Class Bloons spawn in a partially damaged state.	1,000	14 invested, Sub Admiral;Master Defender
	Door Gunner Special Poperations Heli allows tier 4 and below Monkey Towers to attack Bloons while in transit.	1,000	14 invested, Charged Chinooks
	Military Conscription Purchase price of first Military Monkey each game is two thirds the normal.	1,000	14 invested, Trade Agreements
	Sub Admiral Sub Commander affects all Monkey Subs on screen.	1,000	14 invested, Flanking Maneuvers
	Cheaper Doubles Ninja Double Shot cost reduced by 100.	Free	SUPER Range
	Heavy Knockback Bloons hit by Knockback from Super Monkey are knocked back slightly harder.	Free	SUPER Range
	Hot Magic All Magic type towers can pop Frozen Bloons.	Free	Lingering Magic
	Lingering Magic Longer projectile lifespan for Wizard Monkey, Super Monkey, Skywarden, and Druid.	Free
	Magic Tricks Guided Magic and Intense Magic cost 25 less.	Free
	Mo' Monkey Money Earn 10% extra Monkey Money from game wins on any difficulty.	Free	Speedy Brewing
	Speedy Brewing All Alchemist's potions have 5% faster reload time.	Free	Magic Tricks
	SUPER Range Increased range for the Super Range upgrade.	Free
	Diversion Tactics Increased chance to distract Bloons from Distraction upgrade.	Free	4 invested, Cheaper Doubles
	Flame Jet Dragon's Breath flame projectiles move much faster.	Free	4 invested, Magic Tricks;Hot Magic
	Strike Down the False Sun Avatar can pop Purple Bloons.	Free	4 invested, Heavy Knockback
	Strong Tonic Transforming Tonic lasts longer.	Free	4 invested, Speedy Brewing
	Warm Oak Heart of Oak cost reduced by 100.	Free	4 invested, Hot Magic
	Acid Stability Alchemists' acid pools last 5 seconds longer.	250	4 invested, Strong Tonic
	Arcane Impale Arcane Spike does extra damage to MOAB-Class and Ceramic Bloons.	250	4 invested, Flame Jet
	Cold Front Ball Lightning's additional lightning bolts also freeze Bloons.	250	4 invested, Warm Oak
	X-ray Ultra Ultravision allows Super Monkeys to see through and fire through blocking objects.	250	4 invested, Strike Down the False
	Deadly Tranquility Bloonjitsu and Grandmaster Ninja get an extra shuriken per throw.	500	8 invested, Diversion Tactics
	There Can Be Only One There can be only one.	500	8 invested, X-ray Ultra
	Vine Rupture Grants Spirit of the Forest Druid a new ability to burst all track vines, doing big damage to all non-Lead Bloons. New vines will regrow after each Rupture.	500	8 invested, Cold Front
	Mana Shield Creates a special shield that absorbs up to 25 lives for free. Recharges slowly each round if no Bloons leak.	1,000	8 invested, Arcane Impale
	Tiny Tornadoes Druid tornadoes spawn 3 smaller tornadoes when they expire.	1,000	8 invested, Deadly Tranquility;Cold Front;Vine Rupture
	First Last Line of Defense Purchase price of first Spike Factory each game is $150 less.	Free	One More Spike
	Flat Pack Buildings Farm and Village cost 2% less and sell for 2% more.	Free
	Insider Trades Monkey Business discount increases by 2%.	Free	Flat Pack Buildings
	More Valuable Bananas Valuable Bananas upgrade increases to 30%.	Free	Flat Pack Buildings
	One More Spike Spike Factory stacks get +1 spike.	Free
	Bigger Banks Monkey Banks can hold 2500 extra money.	Free	3 invested, Insider Trades
	Farm Subsidy First Banana Farm each game costs 100 less.	Free	3 invested, More Valuable Bananas
	Monkey Education All Monkeys XP earn rate increased by 8%.	Free
	Vigilant Sentries Sentry Turrets last longer than normal.	Free	3 invested, One More Spike
	Backroom Deals IMF Loan grants $1000 more and repay rate is 40%.	250	3 invested, Bigger Banks
	Inland Revenue Streams Monkey Town cash bonus increased by 10%.	250	3 invested, Farm Subsidy
	Thicker Foams Cleansing Foam can hit 3 more Bloons before expiring.	250	3 invested, Vigilant Sentries
	To ARMS! Call to Arms duration increased by 3 seconds.	250	3 invested, Monkey Education
	Very Shreddy MOAB SHREDR spikes do +1 extra damage to MOAB-Class Bloons.	250	3 invested, First Last Line of Defense
	Better Sell Deals All Monkeys sell for 5% more.	500	8 invested, Backroom Deals
	Big Traps Bloon Trap can hold 30 more RBE.	500	8 invested, Thicker Foams
	Global Ability Cooldowns All Ability cooldowns for all Monkeys reduced by 3%.	500	8 invested, To ARMS!
	Healthy Bananas Marketplaces now produce 1 life per round and Central Markets produce 3.	500	8 invested, Inland Revenue Streams
	Hi-Value Mines Spiked Mines cost reduced by 1500.	500	8 invested, Very Shreddy
	Veteran Monkey Training All Monkeys reload time reduced by 3%.	500	8 invested, To ARMS!
	Bank Deposits Tier 4 and above Monkey Banks can take deposits from available in game cash.	1,000	14 invested, Better Sell Deals
	Paragon of Power Paragons attack faster if there are no Tier 5 of the same tower.	1,000	14 invested, Veteran Monkey Training
	Ability Discipline Hero level 10 Ability cooldowns reduced by 10%.	Free
	Heroic Reach All heroes get slightly increased range.	Free
	Heroic Velocity All Heroes' projectile speeds increased slightly.	Free	Heroic Reach
	More 'Splody Heroes' explosives get +2 pierce per shot.	Free
	Scholarships Hero training costs reduced by 10%.	Free	More 'Splody
	Ability Mastery At level 20, Heroes' level 3 Ability cooldown reduced by 30%.	Free	3 invested, Ability Discipline
	Quick Hands Makes all heroes attack 4% faster.	Free	3 invested, Heroic Velocity
	Self Taught Heroes Heroes earn XP 10% faster.	Free	3 invested, Scholarships
	Hero Favors Heroes' base cost reduced by 10%.	250	3 invested, Self Taught Heroes;Quick Hands
	Big Bloon Blueprints Heroes do +1 extra damage to MOAB-Class Bloons with their base attack.	500	8 invested, Ability Mastery
	Empowered Heroes Heroes start each game at level 3.	500	8 invested, Hero Favors
	Monkeys Together Strong Heroes receive 5% more experience per each Hero placed.	1,000	8 invested, Empowered Heroes
	Weak Point All Heroes deal +1 damage to Ceramic & Fortified Bloons.	1,000	8 invested, Monkeys Together Strong;Big Bloon Blueprints
	Bigger Camo Trap Camo Trap lasts for 600 Bloons.	Free
	Budget Pontoons Pontoon costs 40 Monkey Money.	Free	Cheaper Lakes
	Cheaper Lakes Portable Lake costs 40 Monkey Money.	Free
	Just One More Road Spike piles have 21 spikes in them.	Free
	Longer Time Stop Time Stop lasts longer than normal.	Free	Just One More
	Mauling MOAB Mines MOAB mine does extra damage.	Free	Bigger Camo Trap
	Longer Boosts Monkey Boost lasts longer.	Free	3 invested, Longer Time Stop
	Powerful Monkey Storm Super Monkey Storm does more damage.	Free	3 invested, Budget Pontoons;Longer Boosts
	Supersize Glue Trap Glue Trap can slow MOAB-Class Bloons, though the bigger the Bloon, the more glue is used up.	Free	3 invested, Mauling MOAB Mines
	Ambush Tech Techbot gains a targeting option to trigger only when Bloons enter a specific track area.	250	3 invested, Supersize Glue Trap
	Fit Farmers Monkey Farmers have larger radius.	250	3 invested, Powerful Monkey Storm
	Pre-game Prep Start each game with a pile of permanent Road Spikes at the end of the track.	250	3 invested, Longer Boosts
	Budget Cash Drops Cash Drops cost 20 Monkey Money less.	500	3 invested, Fit Farmers
	Supa-Thrive Thrive adds 30% instead of 25%.	500	3 invested, Fit Farmers
	Grand Prix Spree Monkey Money cost to enter Races is reduced by 10%.	1,000	10 invested, Budget Cash Drops

Related achievements

See also: Monkey Knowledge Point#Achievements

Shop items

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Update history

This section only lists changes to the Monkey Knowledge system in general. For a list of changes to all Monkey Knowledge, see Update history:Monkey Knowledge (BTD6).

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Gallery

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  Primary category icon
• 
  Military category icon
• 
  Magic category icon
• 
  Support category icon
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  Heroes category icon
• 
  Powers category icon
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  Enable/disable button icon
• 
  Respec button icon

Unused content

Icon	Name / Description
	Broad Blade Dartlings Shots from Dartling Guns can hit Bloons more easily.
	Dartling Coolant Dartling Gun attack speed increase by 10%.[sic]
	More Buckshot Buckshot shoots 5 projectiles.
	Focused Plasma Plasma Accelerator does damage faster.
	Elite Tutors Generates another +15 XP per round for your Hero.
	Long Graduation Academy Graduate lasts longer.