Battle Traits

Battle Traits are features that can be activated before starting a map. Battle Traits will make Bloons tougher, with each battle trait giving different effects.

Haste

 * Every Level: Bloons move +4% faster.
 * Every 3 Levels: +1 round.
 * Max. Level: Unlimited
 * Rewards: +2.5% experience gained per level.
 * How to Unlock: First level unlocked at Rank 15. An additional level is unlocked for every 100,000 Pink Bloons popped.

Revitalization

 * Every Level: +5% of Bloons are Regrowth. Regrowth M.O.A.B.-class Bloons regenerate +0.1% of their health each second.
 * Every 3 Levels: Regen Farming gives 15% less money. Regrowth Bloons regenerate +10% faster.
 * Max. Level: 20
 * Rewards: +5% experience and Monkey Money gained per level.
 * How to Unlock: First level unlocked at Rank 35. An additional level is unlocked for every 150,000 Regrowth Bloons popped.

Stealth

 * Every Level: +5% of Bloons are Camo.
 * Every 3 Levels: Camo Bloons move +15% faster. Camo M.O.A.B.-class Bloons deal +5% more damage and take +5% more lives.
 * Max. Level: 20
 * Rewards: +10% experience gained per level.
 * How to Unlock: First level unlocked at Rank 35. An additional level is unlocked for every 50,000 Camo Bloons popped.

Joker

 * Every Level: +5% of Bloons are Indestructible.
 * Every 3 Levels: Random Bloons will appear equal to +50% of the RBE of the Indestructible Bloons.
 * Max. Level: 15
 * Rewards: +25% experience, +10% Monkey Money, and +15% Tolens gained per level.
 * How to Unlock: First level unlocked at Rank 50. An additional level is unlocked for every 10,000 Indestructible Bloons that escape.

Chaos

 * Every Level: Bloon rushes contain +15% more Bloons.
 * Every 3 Levels: +30% more Bloons spawn outside of rushes. +1 round.
 * Max. Level: Unlimited
 * Rewards: +5% experience, +7.5% Monkey Money, and +10% Tokens gained per level.
 * How to Unlock: First level unlocked at Rank 25. An additional level is unlocked for every 2,000,000 Bloons popped.

Domination

 * Every Level: M.O.A.B.-class Bloons have +15% health.
 * Every 3 Levels: M.O.A.B.-class Bloons spawn +10% more children. +1 round.
 * Max. Level: Unlimited
 * Rewards: +5% experience gained per level.
 * How to Unlock: First level unlocked at Rank 30. An additional level is unlocked for every 50,000 Ceramic Bloons popped.

Impatience

 * Every Level: Fast forward is +20% faster.
 * Every 3 Levels: Normal gameplay is +30% faster.
 * Max. Level: Unlimited
 * Rewards: +5% experience gained per level.
 * How to Unlock: First level unlocked after popping a Doom Bloon. An additional level is unlocked for every 3,000,000 Bloons popped.

Hardship

 * Every Level: The game goes 2fps slower.
 * Every 3 Levels: +1 round.
 * Max. Level: 25
 * Rewards: +10% experience gained per level.
 * How to Unlock: First level unlocked at Rank 40. An additional level is unlocked for every 4,000,000 Bloons popped.

Risk

 * Every Level: Number of lives reduced by 8%. Starting lives cannot go below 1.
 * Every 3 Levels: Bloons take +20% more lives. +1 round.
 * Max. Level: 12
 * Rewards: +10% experience, Monkey Money, and Tokens gained per level.
 * How to Unlock: One level is unlocked for every track beaten on Hard without losing lives.

Mischief

 * Every Level: Odd Music can appear 3% sooner.
 * Every 3 Levels: Odd Music has +10% health. +2 rounds.
 * Max. Level: 30
 * Rewards: +5% experience, Monkey Money, and Tokens gained per level.
 * How to Unlock: One level is unlocked for each time Odd Music is defeated.

Endurance

 * Every Level: Stats of M.O.A.B.-class Bloons increase +25% faster in Freeplay mode.
 * Every 3 Levels: +15% more Bloons appear in Freeplay mode.
 * Max. Level: Unlimited
 * Rewards: +10% experience gained in Freeplay mode per level.
 * How to Unlock: First level unlocked at Rank 55. An additional level is unlocked for every time.

Daredevil

 * Every Level: All Bloons have +1 random Bloon Properties.
 * Every 3 Levels: +2 random battle traits are raised by 1 level. This cannot raise battle traits above maximum level, nor can it raise locked traits.  However, a trait may be raised multiple times.
 * Max. Level: 30
 * Rewards: x1.3 experience gained per level.
 * How to Unlock: First level unlocked at Rank 70. An additional level is unlocked for every 5 ranks obtained.

Mayhem

 * Every Level: Bloons have +1 children.
 * Every 3 Levels: +5 rounds.
 * Max. Level: Unlimited
 * Rewards: x1.5 Monkey Money and Tokens gained per level.
 * How to Unlock: One level is unlocked for every Impoppable medal obtained.

Hatred

 * Every Level: All Bloons have x2 health.
 * Every 3 Levels: +5 rounds.
 * Max. Level: Unlimited
 * Rewards: x1.5 experience, Monkey Money, and Tokens gained per level.
 * How to Unlock: One level is unlocked for every Impoppable medal obtained.

Trait-Related Achievements

 * Fast-paced: Beat a map on Hard difficulty with both the Haste and Impatience traits set to Level 100 or higher. Gives 500 NK points.
 * Hateful: Beat a map on Impoppable difficulty with the Hatred trait set to Level 3 or higher. Gives 500 NK points.
 * Mischievous: Defeat Odd Music with the Joker and Mischief traits both set to maximum level. Gives 400 NK points.
 * Invincible: Defeat That Purple Blimp with the Domination, Hardship, Risk, and Endurance traits all set to Level 10 or higher. Gives 2000 NK points.
 * Chaotic: Beat a map on Impoppable difficulty with all traits active. Gives 1000 NK points.