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A page for Hero Units introduced in Bloons Adventure Time, a spin-off of Bloons Tower Defense. For more information on the characters originating from AT, please see the relevant page in the cartoon show's page.

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    In General 
  • Gender-Equal Ensemble: There are three male AT characters, three female AT characters, three male monkeys, and three female monkeys. If you include variants, AT characters outnumber monkeys, but there are still nine Hero Units of each gender.
  • Original Generation: While technically representative of the BTD side, there's Max, Cassie, Sam, Sai the Shadow, and C4 Charlie. The only main hero taken directly from BD is Supermonkey.

Adventure Time Characters

    Finn 
Finn the Human is always ready with his sword to do what's right. In this case, popping lots of Bloons. Finn's swordfighting style gives him low range but considerable pierce. In addition to attack speed, range and pierce upgrades, Finn can obtain stunning attacks in both passive and active varieties and anti-MOAB capabilities.

Finn also has a DLC variant, "Dungeon Finn", in which he utilizes gear from the Dungeon Train to pop Bloons.


  • Combination Attack: Two, with Jake and Princess Bubblegum.
    • With Jake, Finn can get Brofist to earn lives and cash every round.
    • With Peebs, Finn can use Bound By Word to increase his attack speed when a Bloon leaks.
  • Heroic Second Wind: Big Hearted Hero saves you from a game over once, completely refilling your lives.
  • The Power of Love: A Finn-exclusive trinket is the Pink Sweater Princess Bubblegum gave him, which allows him to No-Sell any debuff.
  • Weapon of X-Slaying: MOAB-ripper massively increases the damage Finn deals to MOAB-class bloons.

    Jake 
Jake the Dog, Finn's trusted partner arrives to lend him a hand. He has a wide variety of different attacks, but a low attack speed, starting with a stab with decent range and a slap that pops two layers at once, and can gain four other attacks with varying degrees of power and utility that he switches between as he fights. In addition, he can lower an ally's ability cooldown, tie up a MOAB-class Bloon with Tie 'em up!, or team up with Finn to use the Jake Suit for powerful attacks.

Jake also has a DLC variant, "Tuxedo Jake", that cannot attack Bloons but instead powers up all allies in range, discounting their upgrades and boosting their attack speed.


  • Combination Attack: Jake Suit temporarily removes Jake from the battlefield to switch out Finn's attack set with a much stronger variety of attacks, and from Finn's side he can use Bro Fist to help generate money and regain lost lives.
  • Expy: Tuxedo Jake's Turn It Up upgrades and beyond are based on the Monkey Village, while his upgrades from Busker and beyond are based on the Banana Farm.
  • Leaning on the Fourth Wall: Tends to be the most likely to break the fourth wall, mentioning when he gets upgraded or referencing the Tower Defense genre in his annoy quote.
  • Support Party Member: Tuxedo Jake can't attack at all outside of his Rock Out ability, unlike regular Jake. That said, he can help the player boost other units and garner mass amounts of money.
  • Theme Music Power-Up: Jake's "weapons" are musical instruments that Jake plays to focus. His I'm the Musical One skill boosts the stat boosts of his equipped instrument, and Tuxedo Jake's Full Orchestra boosts the effects of other heroes' instruments, stacking with his normal self's boost.

     Princess Bubblegum 
The ruler of the Candy Kingdom, Princess Bubblegum is armed with a bubblegum blaster to protect her citizens. Her weapon of choice gums up Bloons hit by it, slowing them down. Upgrades allow for an increased blast radius and firing speed, increased damage to Ceramic and MOAB-class bloons, cleansing Camo and Regrow from Bloons, increasing the firing speed and quantity of equipped allies, improving the range and pierce of nearby heroes, and earning more cash. Her ability of choice is Jellybeans Have Power, launching a barrage of jellybeans at Bloons, or alternately Royal Decree which gives you a large infusion of cash once per round.

PB also has an in-game unlockable variant, "Warrior Bubblegum", who wields a blade in battle and is focused on boosting her allies.


  • Combination Attack: If Finn is using Bound By Word, Peebs can use Royal Promise to make the attack speed boost permanent without needing a Bloon to leak. Hunter Marceline can also get stronger Garlic Bombs if around Bonnie.
  • The Minion Master: PB's regular form has an upgrade that allows her to deploy an extra two copies of every Ally equipped to her.
    • Most of Warrior PB's upgrades involve summoning temporary allies special to her and enhancing them. She can also make buying her Allies cheaper, be able to place down one more of each, and (though costly) apply this to everyone's Allies.

    The Ice King 
After being found out as the one who summoned the Bloons to Ooo, he was forced to clean up his mess. (Not really, he just went along with it to hang out with the others)

Ice King uses various ice based magic to freeze Bloons in their tracks, his main spell being a freezing AOE similar to an Ice Monkey. Other spells include a Tack Tower like set of Ice Bolts and a Lightning Strike with infinite range. Upgrades increase the effectiveness of the freeze, allowing his Lightning Strike to freeze enemies, Camo detection, and increasing the amount of Ice Bolts fired. His activated ability is Monsters of Snow, summoning said monsters to the field to fight Bloons.


  • Defeat Means Friendship: To unlock him, you need to complete a mission where he harasses your towers by using Freeze Lightning to slow their attack speed.

    Flame Princess 
Once again trapped in a giant lamp, she joins the fight against the Bloons upon being free, which has the side benefit of releasing the excess heat her emotions tend to generate.
  • Meta Power: Between Sam, Ice King and herself, she's the best candidate to use the Thought Cannon Wand, a wand that does not have high boosts ingame, but allows the user to obtain mass amounts of Wish Orbs, thanks to having the best speed between the three wand users.

    Marceline 
Marceline also has a DLC variant, "Hunter Marceline", which wields darts and can drop garlic bombs along her flight path.
  • Expy: Normal Marceline is similar to Heli Pilot while Hunter Marceline is similar to Monkey Ace.

Monkeys

    Max 
https://static.tvtropes.org/pmwiki/pub/images/battd_max.png
His default skin
A powerful Dart Monkey with a few special tricks up his non-existent sleeves. Unupgraded Max is functionally identical to a Dart Monkey, with passive upgrades allowing for more range, camo detection and pierce, but can also gain the ability to pop Frozen and Lead bloons, increased darts thrown per attack, greatly boost attack speed, increase the pierce of Sharp weapons of nearby allies and passively and actively boost his MOAB-damage. His active skills are Bullseye, the previously mentioned Anti-MOAB skill and Dartnado, which launches darts in all directions.

Max also has an in-game unlockable variant, "Juggernaut Max", where he upgrades to heavier artillery.


  • Expy: He's a variant of the regular Dart Monkeys. His Juggernaut version is based on the Dart Monkey's Juggernaut upgrade.
  • Flechette Storm: Both from his Dartnado, as well as from his two More Darts upgrades, which allow him to throw one additional dart per upgrade, but leveling Max up improves the upgrades, allowing for even more darts.
  • Power-Up Letdown: His "Juggernaut Max" variant, while upgrading to a spike-ball tossing catapult, suffers from focusing on the game's Dump Stat above all else, pierce. His normal version is better for handling MOABs, which are the main threat of the game.

    Captain Cassie 
https://static.tvtropes.org/pmwiki/pub/images/battd_cassie_alt.png
The "Commander Cassie" variant
A rogue commander of a navy fleet, Captain Cassie seeks whatever treasures she can find.

Cptn. Cassie works similarly to a Monkey Buccaneer, but with a few additional surprises to fight the Bloons with, such as her main cannon firing explosives instead of darts. In addition to the Grape Shot, Long Barrel, Crow's Nest and MOAB Takedown the Buccaneer has, she can increase the blast radius of her shots and lob explosive barrels onto the track. Her crew also plays a part in her strategy, with Cassie being able to share Crow's Nest's effect with them, increasing the amount of allies she can place, earning more cash when Cassie or her crew pop a bloon, and having them assist her in MOAB Takedown.

Cassie also has an in-game unlockable variant, "Commander Cassie", where she upgrades her boat to a battleship.


  • Combination Attack: Princess Bubblegum can help Cassie use the Privateer upgrade to increase the attack speed of her and her crew, as well as make the pirates and their upgrades cheaper.
  • Cool Boat: Cassie, whether she be a pirate captain or a fleet commander, will always be aboard a ship when fighting the bloons. Naturally, barring certain trinkets (or Martian magic grounding her ship), this means she needs to be placed on or under water to be of use.
  • Expy: She's a variant of the Monkey Buccaneer. She borrows from the Aircraft Carrier with Commander Cassie, but otherwise she mostly borrows from the Monkey Submarine.
  • Ooh, Me Accent's Slipping: At times, she accidentally drops her pirate-y matter of speaking, but quickly corrects herself. Examples:
    Captain Cassie (When Tapped): Yes? I mean, Yarr?
    Captain Cassie (When Upgraded): Yippee! I mean, YARR!

    Sai 
https://static.tvtropes.org/pmwiki/pub/images/battd_sai.png
Sai the Shadow, a deadly Bloon assassin. Wherever Bloons are, she's never far behind.Sai's style is similar to a Ninja Monkey, but with a few new tools at her disposal. Just like normal Ninja monkeys, she can detect Camo unaided, but she doesn't have the best damage. Passive upgrades increase her range, pierce, shurikens thrown per attack and damage against MOAB-class bloons. She is capable of using blobs of darkness to increase the damage Bloons take, toss caltrops onto the track, use flash bombs to stun Bloons, grant her shurikens homing capabilities and use Fridjutsu to freeze Bloons. Her activated ability is the Ninja Monkey's classic Sabotage Supply Lines to slow incoming Bloons for a period of time.
  • Aloof Ally: In-story, Sai doesn't hang with Finn and company, disappearing shortly after her rescue from Lemongrab. Max does assure that she'll be around whenever there are bloons attacking, which explains why she's in your party.
  • Expy: She's a variant of the Ninja Monkey.
  • Spikes of Doom: Sai's Tetsubushi upgrade allows her to plant caltrops on the track. These disappear at the end of every wave, however.
  • The Voiceless: Never says a single word to anybody. Someone else may chime in when placing her or using Sabotage Supply Lines, but the only sound players will hear from her is deep breaths when they bother her.

    Sam 
https://static.tvtropes.org/pmwiki/pub/images/battd_sam.jpg
A magical monkey that joins the team after the Wizard Battle gets interrupted by Bloons.

    C4 Charlie 
https://static.tvtropes.org/pmwiki/pub/images/battd_charlie.jpg
A bomb-thrower that's perhaps a tat too giddy about explosions, joining after being saved from a dark reflection of himself.
  • Expy: His upgrades are based on the Mortar Monkeys from the main series, although his preference for staying close to the Bloons and throwing bombs as opposed to firing them from a cannon make him similar to the Bomb Cannon.
  • Mad Bomber: He's completely fascinated by all things that go boom.

    Supermonkey 
https://static.tvtropes.org/pmwiki/pub/images/battd_supermonkey.jpg
A Hero Unit version of the Super Monkey from the main Bloons Tower Defense games.
  • Adaptational Wimp: He requires upgrades to attain his iconic attack speed, and he also needs to upgrade his speed alongside his eye-rays to unlock Sun Avatar. He also lacks his Robo-Monkey and Technological Terror upgrades, and cannot become the Temple of the Sun God, instead temporarily transforming into the Sun God himself. Mind you, he's still the most powerful unit in the entire game by an almost incomprehensible level.
  • Awesome Ego: Supermonkey can be a bit full of himself, but he certainly has what it takes to pop every Bloon in his range.
    (when a MOAB-Class bloon appears) "Someone take a picture when I pop this guy! And make sure you get my good side!"
  • Beam Spam: Can attack Bloons with his Eye Beams.
  • Expy: He can transform into the Dark Sun God with a certain trinket. This form is this to the Dark Sun Temple in the main games.
  • Eye Beams: Supermonkey has these, but you have to upgrade to them first. In the meantime, he will toss darts at breakneck speed.
  • Golden Super Mode: Supermonkey's Sun God form, which is only unlockable on Star Level 7 and consumes 4 Super Fans.
  • Heavy Sleeper: His recruitment mission involves waking him up via fighting Bloons across three stages at Extreme difficulty.
  • Narcissist: Definitely. When Max and his friends find him, his first reaction is to look into the mirror and comment on how he is bulkier than Max. He even happily says that the player is free to ask him for an autograph when tapped too many times!
  • Purposefully Overpowered: He's incredibly strong, but also the most-expensive hero unit in the game, and his upgrades make him cost even more. But he's powerful enough to justify it, particularly if you can unlock his Sun God upgrade.

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