Monkey Knowledge Points

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. 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.

It is possible to rank up straight to Rank 30 by going to the Monkey Knowledge menu and buying the purchase that unlocks Rank 30 immediately to start earning Monkey Knowledge. However, it costs $9.99 USD, and level 30 can often be reached very quickly so it is generally not advised. A single Monkey Knowledge point can also be purchased for $0.99 USD.

As of Version 2.0.0, Monkey Knowledge can also be toggled on or off. This can be helpful for testing towers or for practicing C.H.I.M.P.S. mode.

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.

As of version 4.0.0, a respec option has been added, allowing the player's Monkey Knowledge to be reset for a cost of 2000. Using this will refund all of your Monkey Knowledge Points so you can assign them to other things you want.

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.

(The "Requires X Points" statement can be ambiguous. However, what "Requires X Points" means is that a certain number of Monkey Knowledge must be invested in a specific Monkey Knowledge group in order to unlock the upgrade that requires X points, not that it can be unlocked upon the Xth investment into the specific Monkey Knowledge group. For example, "Requires 3 Points" means that there has to be at least 3 Monkey Knowledge Points invested above the displayed requirements line.)

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, possible upgrades have been found in the code.
 * "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 this upgrade does NOT decrease the bloons speed, unlike the upgrade with a similar name Bloon Sabotage.
 * In order to obtain all upgrades for all the categories of Monkey Knowledge, the player must achieve Level 141, assuming that no extra packs have been purchased or earned from achievements or other sources.
 * 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.
 * The "Violent Impact" Monkey Knowledge was formerly deemed more harmful than good due to how Bloon Impact/Bloon Crush stuns could not refresh upon a new stun. This was changed as of Version 8.0, since now those upgrades can refresh their own stuns.