Star level

Star level is a game mechanic for characters in Bloons Adventure Time TD. By spending character resources, characters can be levelled up to unlock permanent enhancements, more upgrades, and additional trinket and ally slots. All characters start at star level 1 and can be levelled up to star level 10, with the cost to level up increasing at higher levels.

Star level bonuses

• Levels 2, 4, 6, 8, and 9 unlock a permanent bonus for one of the character's stats.
• Levels 3, 5, and 7 unlock a new upgrade (or two upgrades in the case of Hunter Marceline at level 3).
• Levels 2, 4, 6, 8, 9, and 10 unlock a trinket slot.
• Levels 3, 5, and 10 unlock an ally slot.
• Level 10 unlocks a bonus unique to that character.

Star level	Cost		Bonuses
	This level	Total
2	3	3	Stat bonus + fourth trinket slot
3	8	11	New upgrade(s) + second ally slot
4	15	26	Stat bonus + fifth trinket slot
5	30	56	New upgrade(s) + third ally slot
6	50	106	Stat bonus + sixth trinket slot
7	75	181	New upgrade(s) + seventh trinket slot
8	110	291	Stat bonus + eighth trinket slot
9	150	441	Stat bonus + ninth trinket slot
10	200	641	Unique bonus + tenth trinket slot + fourth ally slot

List of star level bonuses by character

This section is incomplete. You can help out by expanding it. The editor who added this notice elaborates: Missing some characters

C4 Charlie

Level	Effect
2	Explosion radius (including the secondary explosions from Double Bomb and Bouncing Bomb) increases by 2 units. Has no effect after upgrading to Bigger Bombs, which always sets the radius to 23 units.
3	Unlocks Double Bomb.
4	Attack cooldown reduces by 0.1 seconds, effectively increasing attack speed by ~7.14%. Has no effect after upgrading to Attack Speed, which always sets the cooldown to 1.3 seconds.
5	Unlocks Burny Stuff.
6	Range increases by 2 units. This stacks additively with Long Range Bombs.
7	Unlocks MOAB Assassin.
8	Explosion radius (including secondary explosions) increases by 2 units. Has no effect after upgrading to Bigger Bombs.
9	Attack cooldown reduces by 0.1 seconds, effectively increasing attack speed by ~7.69%. Has no effect after upgrading to Attack Speed.
10	Explosions deal Explosion/Normal-type damage (including secondary explosions), allowing them to damage all Bloon types.

Captain Cassie

Level	Effect
2	Bomb attack cooldown reduces by 0.1 seconds (before Privateer), effectively increasing its attack speed by ~7.69%.
3	Unlocks Broadside.
4	Blast radius of bombs and Broadside bombs increases by 2 units. Has no effect after upgrading to Heavy Duty Ammo, which always sets the radius to 20 units.
5	Unlocks Bloon Pillage.
6	Range increases by 4 units.
7	Unlocks MOAB Takedown.
8	Bomb attack cooldown reduces by 0.2 seconds (before Privateer), effectively increasing its attack speed by ~18.2%.
9	Blast radius of bombs and Broadside bombs increases by 2 units. Has no effect after upgrading to Heavy Duty Ammo.
10	Adds two uses of the Pirate Crew that do not take up an ally slot.

Commander Cassie

Level	Effect
2	Range increases by 1 unit. Stacks additively with Sonar Array and Enhanced Tactical Radar.
3	Unlocks Bloontonium Tips.
4	Main attack pierce increases by 1.
5	Unlocks Sidewinder Strike.
6	Base cost reduces by $250.
7	Unlocks Missile Barrage.
8	Main attack pierce increases by 1.
9	Range increases by 2 units. Stacks additively with Sonar Array and Enhanced Tactical Radar.
10	Starts with two M.A.F. planes when placed, which have the same properties and are also affected by Sidewinder Strike. M.A.F. and Arms Race still add two planes each.

Dungeon Finn

Flame Slap's splash radius increases by 1 unit per star level.

Level	Effect
2	Sword attack range increases by 2 units. Stacks additively with Skilled Swordsmanship.
3	Unlocks True Warrior.
4	Sword attack pierce increases by 1. Stacks additively with Savage Strength.
5	Unlocks One-Two Combo.
6	Sword attack cooldown reduces by 0.1 seconds, effectively increasing its attack speed by ~11.1%. Stacks additively with Adrenaline Boost.
7	Unlocks Inferno.
8	Sword attack range increases by 3 units. Stacks additively with Skilled Swordsmanship.
9	Sword attack pierce increases by 2. Stacks additively with Savage Strength.
10	Gains a ranged sword-throwing attack with the same pierce, attack cooldown, and damage as his main attack, but with 10 more range. It is affected by pierce, cooldown, damage, and range stat modifiers (from equipment, upgrades, etc) in the same way as his main attack. This attack is not considered a "main attack".

Finn

Flying Kick's attack cooldown reduces by 0.1 seconds per star level.

Level	Effect
2	Sword attack cooldown reduces by 0.1 seconds, effectively increasing its attack speed by ~11.1%. Applies before Radder, Faster! and Raddest, Fastest!'s cooldown multipliers.
3	Unlocks Flying Kick.
4	Sword attack pierce increases by 2.
5	Unlocks Finn of Fury.
6	Range increases by 5.
7	Unlocks Big Hearted Hero.
8	Sword attack pierce increases by 2.
9	Sword attack cooldown reduces by 0.1 seconds, effectively increasing its attack speed by 12.5%. Applies before Radder, Faster! and Raddest, Fastest!'s cooldown multipliers.
10	Sword attack base damage increases by 1 and damage to MOAB-Class Bloons increases by 3. Stacks additively with Slicer and MOAB Ripper.

Flame Princess

Level	Effect
2	Range increases by 2 units. Does not affect Fire Sword, Flame Thrower (unless upgraded to Heat Ray), or Elemental Transform's swiping attack. (This also applies to the bonuses at levels 4 and 8.)
3	Unlocks Heat Sense.
4	Range increases by 2 units.
5	Unlocks Heat Ray.
6	Fireball pierce increases by 2. Has no effect after upgrading to Bigger Blaze, which always sets the pierce to 8.
7	Unlocks Elemental Transform.
8	Range increases by 2 units.
9	Fireball attack cooldown reduces by 0.2 seconds, increasing its overall attack speed by ~36%.
10	Fireball attack now shoots two fireballs at a time instead of one, spread 45° apart from each other.

Ice King

Level	Effect
2	Freeze attack cooldown reduces by 0.1 seconds, effectively increasing its attack speed by ~4.35%.
3	Unlocks Hail Storm.
4	Freeze attack cooldown reduces by 0.1 seconds, effectively increasing its attack speed by ~4.54%.
5	Unlocks Monsters Of Snow.
6	Range increases by 2 units and freeze attack radius increases by 2 units.
7	Unlocks Big Freeze.
8	Freeze attack cooldown reduces by 0.1 seconds, effectively increasing its attack speed by ~4.76%.
9	Freeze attack cooldown reduces by 0.1 seconds, effectively increasing its attack speed by 5%.
10	Adds the normal damage type to all attacks and allows them to target White Bloons and Zebra Bloons (including the Snow Monsters).

Jake

Level	Description	Effect
2	Base Attack Speed +0.1	Reduces the cooldown of his base attack by 0.1 seconds, effectively increasing attack speed by ~0.111.
3	—	Unlocks Harmful If Swallowed.
4	Base Pierce +1	—
5	—	Unlocks Be Calmed By My Saliva.
6	Base Range +3	—
7	—	Unlocks Jake Suit.
8	Base Pierce +1	—
9	Base Attack Speed +0.1	Reduces the cooldown of his base attack by 0.1 seconds, effectively increasing attack speed by ~0.111.
10	Starts with Mace Hand and Axe Foot upgrades	—

Marceline

Level	Description
2	Swiping attack pierce increases by 2. Has no effect when transformed into a bat. Necromancy now spawns four skeletons instead of three.
3	Unlocks Eating Red. Necromancy now spawns five skeletons.
4	Amp range increases by 3 units.
5	Unlocks Improved Necromancy.
6	Swiping attack cooldown reduces by 0.2 seconds, effectively increasing its attack speed by ~25%. Applies before Ferocity's cooldown multiplier. Has no effect when transformed into a bat.
7	Unlocks Shape Shifting.
8	Swiping attack pierce increases by 2. Has no effect when transformed into a bat.
9	Amp range increases by 3 units.
10	The amp gains a soundwave area-of-effect attack that deals 1 normal-type damage, has 40 pierce, and fires every second. Its radius scales with the amp's range. It does not benefit from any equipment stat bonuses except range.

Max

Level	Description	Effect
2	Base Pierce +1	—
3	—	Unlocks Even More Darts.
4	Base Range +3	—
5	—	Unlocks Big Bloon Bounty.
6	Base Attack Speed +0.3	Reduces the cooldown of his base attack by 0.3 seconds, effectively increasing attack speed by ~0.333.
7	—	Unlocks Dartnado.
8	Base Pierce +1	—
9	Base Range +3	—
10	Base attack fires 2 darts	—

Princess Bubblegum

Level	Description	Effect
2	Base Attack Speed +0.1	Reduces the cooldown of her base attack by 0.1 seconds, effectively increasing attack speed by ~0.111.
3	—	Unlocks To Me.
4	Base Range +2	—
5	—	Unlocks Royal Decree.
6	Blast Radius +2	—
7	—	Unlocks Soda and Mints.
8	Base Attack Speed +0.1	Reduces the cooldown of her base attack by 0.1 seconds, effectively increasing attack speed by ~0.111.
9	Base Range +3	—
10	Corrosive Gum damages bloons over time	Bloons inflicted with bubblegum take 1 normal-type damage per second.

Sai

Level	Description
2	Range increases by 2 units. Affects all attacks (main attack, Marked For Death, Tetsubishi, and Flash Bomb). Stacks additively with Longer Range.
3	Unlocks Flash Bomb.
4	Main attack pierce increases by 1. Stacks additively with Sharper Shurikens and Super Sharp Shurikens.
5	Unlocks Sabotage Supply Lines.
6	Main attack cooldown reduces by 0.1 seconds, effectively increasing her attack speed by ~16.7%. Has no effect on Marked For Death, Tetsubishi, or Flash Bomb.
7	Unlocks Bloonjitsu.
8	Main attack pierce increases by 2. Stacks additively with Sharper Shurikens and Super Sharp Shurikens.
9	Range increases by 3 units. Affects all attacks. Stacks additively with Longer Range.
10	Main attack now deals +1 damage to Bloons with any special properties. Does not stack for Bloons with multiple special properties. Has no effect on other attacks.

Supermonkey

Level	Description
2	Pierce increases by 1. Has no effect after upgrading to Laser Eyes, which always sets the pierce to 3.
3	Unlocks Heroic Aura.
4	Range increases by 3 units, including while transformed into the Sun God.
5	Unlocks Call in Friends.
6	Attack cooldown reduces by 0.01 seconds, effectively increasing his attack speed by ~11.1%. Has no effect after upgrading to Supersonic Speed, which always sets the cooldown to 0.07 seconds.
7	Unlocks Sun God.
8	Pierce increases by 2. Has no effect after upgrading to Laser Eyes.
9	Range increases by 4 units, including while transformed into the Sun God.
10	Starts with Heroic Aura for free when placed.

Tuxedo Jake

Level	Description
2	Range increases by 2 units.
3	Unlocks Rock Out!.
4	Discount buff increases to 12%.
5	Unlocks Fame.
6	Base cost reduces by $100.
7	Unlocks Fortune.
8	Range increases by 3 units.
9	Discount buff increases to 15%.
10	Starts with Busker for free when placed.

Warrior Bubblegum

Level	Effect
2	Sword attack pierce increases by 2.
3	Unlocks Gumball Guards.
4	Sword attack and sub-tower spawning range increases by 2 units.
5	Unlocks Candy Copters.
6	Sword attack cooldown reduces by 0.2 seconds, effectively increasing its attack speed by ~18%. Has no effect after upgrading to Combat Experience, which always sets the cooldown to 0.9 seconds.
7	Unlocks Gumball Guardian.
8	Sword attack and sub-tower spawning range increases by 3 units.
9	Sword attack pierce increases by 2.
10	Starts with Candy Archers for free when placed.

In other languages

Language	Text	Notes
Danish	Stjerneniveau	—
German	Sternstufe	—
Spanish	Nivel de estrellas	—
French	Niveau d'étoile	—
Italian	Livello stella	—
Japanese	スターレベル	—
Korean	별 레벨	—
Dutch	Starniveau	—
Norwegian	Stjernenivå	—
Portuguese (Brazil)	Nível de estrela	—
Russian	Звездный уровень	—
Swedish	Stjärnnivå	—
Turkish	Yıldız Seviyesi	—