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

Captain Cassie

Level	Effect
2	Reduces the cooldown of her bomb attack by 0.1s (before Privateer), increasing its attack speed by ~7.69%.
3	Unlocks Broadside.
4	Increases the blast radius of her bomb attack and Broadside bomb attack by 2 units. Has no effect after purchasing Heavy Duty Ammo, which always sets the radius to 20 units.
5	Unlocks Bloon Pillage.
6	Increases the range of all her attacks by 4 units.
7	Unlocks MOAB Takedown.
8	Reduces the cooldown of her bomb attack by 0.2s (before Privateer), increasing its attack speed by ~18.2%.
9	Increases the blast radius of her base attack and Broadside bomb attack by 2 units. Has no effect after purchasing Heavy Duty Ammo.
10	Permanently gains two uses of the Pirate Crew that do not take up an ally slot.

Finn

Level	Effect
2	Reduces the cooldown of his sword attack by 0.1s (before Radder, Faster! and Raddest, Fastest!), increasing its attack speed by ~11.1%.
3	Unlocks Flying Kick.
4	Increases the pierce of his sword attack by 2.
5	Unlocks Finn of Fury.
6	Increases his range by 5.
7	Unlocks Big Hearted Hero.
8	Increases the pierce of his sword attack by 2.
9	Reduces the cooldown of his sword attack by 0.1s (before Radder, Faster! and Raddest, Fastest!), increasing its attack speed by 12.5%.
10	Increases the base damage his sword attack by 1 and damage to MOAB-Class Bloons by 3 (stacks with Slicer and MOAB Ripper).

Ice King

Level	Effect
2	Reduces the cooldown of his freeze attack by 0.1s, increasing its attack speed by ~4.35%.
3	Unlocks Hail Storm.
4	Reduces the cooldown of his freeze attack by 0.1s, increasing its attack speed by ~4.54%.
5	Unlocks Monsters Of Snow.
6	Increases his range by 2 units and the radius of his freeze attack by 2 units.
7	Unlocks Big Freeze.
8	Reduces the cooldown of his freeze attack by 0.1s, increasing its attack speed by ~4.76%.
9	Reduces the cooldown of his freeze attack by 0.1s, 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 Monsters Of Snow).

Jake

Level	Description	Effect
2	Base Attack Speed +0.1	Reduces the cooldown of his base attack by 0.1s, 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 0.1s, increasing attack speed by ~0.111.
10	Starts with Mace Hand and Axe Foot upgrades	—

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 0.3s, 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 0.1s, 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 0.1s, 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.