Damage types are a game mechanic in the Bloons TD series and in Bloons Pop!. They are a property of damage that determines which types of Bloons the damage can or cannot be dealt to. This mechanic was introduced in the mobile versions of Bloons TD 5, Bloons TD Battles, and Bloons Monkey City as a way of standardising the immunity system used in the Flash versions of these games and in all prior games.

Bloons TD series

Bloons TD 5 (mobile / console) / Bloons TD Battles (multiplatform) / Bloons Monkey City (multiplatform)

Extra damage to Ceramic Bloons and extra damage to MOAB-Class Bloons use separate damage types that can only deal damage to those Bloons. For example, MOAB Mauler's explosion deals 1 Explosive damage and 9 MOABMauler damage, so it deals 1 damage to regular Bloons and 10 damage to MOAB-Class Bloons. Due to a bug, attacks with multiple damage types increase the tower's pop count multiple times.

In BTD5 and BMC (but not BTD Battles), MIB allows Juggernaut damage to apply to MOAB-Class Bloons and allows MOABMauler damage to apply to Ceramic Bloons. This does not apply to the Spike Factory in BMC except for Spike Storm.

Type Regular Black White Lead Frozen Ceramic MOAB-Class
Piercing              
Fire              
Explosive              
Ice              
Plasma              
Foam              
Juggernaut              
MOABMauler              

Bloons TD 6

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Type       Frozen     Notes Towers that can apply this damage type
Sharp             Quincy, Obyn Greenfoot, Captain Churchill, Admiral Brickell, Etienne, Sauda, Dart Monkey, Boomerang Monkey, Tack Shooter, Dartling Gunner, Monkey Ace, Ninja Monkey, Heli Pilot, Bomb Shooter, Skywarden, Engineer Monkey, Druid, Sniper Monkey, Monkey Buccaneer, Monkey Sub, Super Monkey, Desperado, Spike Factory and Beast Handler
Shatter            
  • Also deals more damage to Bloons affected by Silas's Rime.
  • Also creates chain lightning from hit Bloons with Galvanic Conduit's second combo effect.
Sauda, Dart Monkey, Ice Monkey, Dartling Gunner, Mermonkey, Engineer Monkey, Monkey Sub, Desperado, Tack Shooter, Beast Handler,
Explosion             Quincy, Striker Jones, Captain Churchill, Admiral Brickell, Etienne, Bomb Shooter, Mortar Monkey, Monkey Sub, Monkey Buccaneer, Dartling Gunner, Monkey Ace, Engineer Monkey, Heli Pilot, Wizard Monkey
Fire             Gwendolin, Tack Shooter, Wizard Monkey, Mortar Monkey, Monkey Buccaneer and Desperado
Cold            
  • While Cold and Glacier damage is able to pop frozen Bloons by default, both the Ice Monkey and Cold Sentry are unable to target or damage frozen Bloons. The Ice Monkey can only target and pop frozen with Re-Freeze; it cannot be overridden with Monkey Intelligence Bureau.
  • Also deal more damage to Bloons affected by Herald of Everfrost's Snowstorm Roar or Silas's Rime.
  • Also reduce heat from Blastapopoulos.
Ice Monkey, Engineer Monkey
Glacier             Ice Monkey
Frigid             Mermonkey, Skywarden, Druid
Energy            
  • Also deal more damage to Bloons haunted by Corvus.
  • Also add more heat than normal projectiles to Blastapopoulos.
  • Bloons with Galvanic Conduit's first combo effect attract Energy and Plasma projectiles.
  • Also create lightning from hit Bloons in range of Stormwrath Archon's lightning rods.
Wizard Monkey, Dartling Gunner, Heli Pilot, Super Monkey, Engineer Monkey, Skywarden, Beast Handler
Plasma             Adora, Wizard Monkey, Druid, Super Monkey, Skywarden, Dart Monkey, Mermonkey, Dartling Gunner, Heli Pilot, Engineer Monkey, Alchemist, Genie Bottle
Acid             — Glue Gunner, Alchemist
Normal             — Gwendolin, Obyn Greenfoot, Captain Churchill, Admiral Brickell, Sauda, Boomerang Monkey, Druid, Monkey Ace, Heli Pilot, Dartling Gunner, Sniper Monkey, Monkey Sub, Mortar Monkey, Super Monkey, Ninja Monkey, Alchemist, Desperado, Dart Monkey, Spike Factory, and Beast Handler

Internally, damage types in BTD6 are determined by their Bloon weaknesses, specifically an immuneBloonProperties value as a decimal integer equal to the value of its binary flags, starting from the left: glass (64), immune (32, no attack uses this property), frozen (16), Purple (8), White (4), Black (2), Lead (1).

  • Normal: 0
  • Shatter: 1
  • Explosion: 2
  • Glacier: 4
  • Cold: 5
  • Fire: 8
  • Frigid: 12
  • Sharp: 17
  • Acid: 64
  • Plasma: 72
  • Energy: 73

Changes between updates

  • Prior to version 25.0 of BTD6, the Cold and Glacier types worked differently:
    • Cold could not pop frozen by default, while Glacier could.
    • Both types could pop Lead by default, but the Ice Monkey's attack had a special property that caused it to ignore Lead Bloons unless buffed.
  • The Frigid type was introduced in version 45.0, while its name was first revealed in version 48.0 update notes.
  • Plasma and Fire were originally functionally identical and treated as the same damage type by the game's data. In version 52.0, they were separated to allow for different interactions with Glass Bloons (Fire can pop them but Plasma does not) and Dynamite Bloons (Take +1 damage from Fire, Plasma works as normal).
    • Prior to version 52.0, Plasma and Energy had a bitstring value of 8 and 9, now it's 72 and 73. Fire has a bitstring value of 8, just like old Plasma.
  • Normal and Acid were also originally functionally identical and treated as the same damage type by the game's data. In version 53.0, they were separated to allow for different interactions with Glass Bloons (Normal can pop them but Acid does not).

Bloons TD Battles 2

Bloons TD Battles 2 uses a similar system to older versions of BTD6. The Normal type is known as Unstoppable in this game.

Type       Frozen   Notes
Sharp           —
Shatter          
Explosion           —
Cold           While Cold and Glacier damage is able to pop frozen Bloons by default, both the Ice Monkey and Cold Sentry are unable to target or damage frozen Bloons. The Ice Monkey can only target and pop frozen with Re-Freeze; it cannot be overridden with Monkey Intelligence Bureau.
Glacier          
Energy           —
Plasma           —
Fire
Acid           —
Unstoppable
Cosy           Only used by Fusty the Snowman at levels 2 and up, who adds this damage type to all towers.

Bloons Adventure Time TD

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The editor who added this notice elaborates: How do PB and Water Nymph's combined damage types work?

Similar to older versions of BTD6, sources of damage in Bloons Adventure Time TD are able to have multiple damage types. Princess Bubblegum and Water Nymph are able to pop all Bloon types, despite her attack dealing sharp/energy damage, neither of which should be able to pop Lead Bloons.

While most characters and allies list the damage type of their main attack on their profile, some only display "N/A", including all characters and allies with normal, cold, or multi-type damage.

Compared to BTD6, the cold type can pop Lead Bloons, and the glacier type is omitted. While the Acid type does exist in the game's programming, it is completely unused.

Type Black White Lead Frozen Purple Ghost
Sharp            
Shatter            
Crushing            
Explosion            
Cold            
Energy            
Plasma or Fire            
Acid or Normal            

Bloons Pop!

Bloons Pop! uses a simpler damage type model compared to Bloons TD 6. Since frozen Bloons do not gain any immunities in this game, there are no damage types that are only distinguished by their ability to pop frozen.

The names of most damage types are given for certain monkeys in their Bloonspedia bios, though the name of the normal type is not specified in-game and is only given in internal data.

Type        
Sharp        
Explosive        
Cold        
Magic        
Normal