Blue Bloon

"Blue bloons move faster and have red bloons inside them."

- Round 4 in Bloons TD 1

A  is a Bloon that appears in every Bloons game to date, except for Bloons 2 Spring Fling. In the BTD series, it traditionally appears on the 3rd or 4th round. This can be altered for player-made levels in the Bloons TD 4 Track Editor if "Light" or "Hard" bloon progression is chosen. It is a "grandchild" of a Yellow Bloon, and it spawns from a Green Bloon. It releases a Red Bloon when popped. It is only slightly faster than a Red Bloon with a speed of 4 Blocks per second, and has the same speed as a Camouflage Bloon (BTD4). The RBE of a Blue Bloon is 1 (Bloons series) or 2 (other games), meaning it takes 2 hits to pop entirely.

Details
The Blue Bloon is the second-weakest bloon in Bloons TD games. It is slightly faster than a Red Bloon and leaks 2 lives if it reaches the exit. If popped with an attack that deals 1 damage, it spawns a Red Bloon. The Green Bloon is the parent of the Blue Bloon.

Otherwise, in Bloons series games, specifically Ninja Kiwi's earlier games prior to popularizing the Bloons TD series, the Blue Bloon is just a recosmeticked Red Bloon.

Bloons Pop!
"The basic blue Bloon"

- Short description

Appearances

 * Pre-BTD4 generation games
 * Bloons 1
 * Bloons Pop 3
 * Hot Air Bloon
 * Bloons TD 1
 * Bloons TD 2
 * Bloons TD 3
 * BTD4 generation games
 * Bloons TD 4
 * Bloons TD 4 Expansion
 * Bloons TD 4 (Mobile)
 * Bloons TD 4 (DSi)
 * Bloons 2
 * Bloons Super Monkey
 * Bloons Super Monkey (iOS)
 * BTD5 generation games
 * Bloons TD 5
 * Bloons TD 5 Flash
 * Bloons TD 5 Deluxe
 * Bloons TD 5 Mobile
 * Bloons TD Battles
 * Bloons TD Battles Flash
 * Bloons TD Battles Mobile (including Steam port)
 * Bloons Monkey City
 * Bloons Monkey City Flash
 * Bloons Monkey City Mobile (including Steam port)
 * Bloons Super Monkey 2
 * Bloons Supermonkey 2 Mobile
 * BTD6 generation games
 * Bloons TD 6
 * Bloons Adventure Time TD
 * Bloons Pop!
 * Bloons TD Battles 2

Round Appearances
The following are all appearances on each round where Blue Bloons will spawn naturally from the entrance. These will not include the rounds where the Blue's parents or subsequent parents will feature.

BTD

 * Round X: TBA
 * Round X: TBA
 * Round X: TBA

BTD2

 * Round X: TBA
 * Round X: TBA
 * Round X: TBA

BTD3

 * Round X: TBA
 * Round X: TBA
 * Round X: TBA

BTD4

 * Round X: TBA
 * Round X: TBA
 * Round X: TBA

BTD5

 * Round X: TBA
 * Round X: TBA
 * Round X: TBA

Normal Gameplay

 * Round 3: 25 Red, 5 Blue
 * Round 4: 35 Red, 18 Blue
 * Round 5: 5 Red, 27 Blue
 * Round 6: 15 Red, 15 Blue, 4 Green
 * Round 7: 20 Red, 20 Blue, 5 Green
 * Round 8: 10 Red, 20 Blue, 14 Green
 * Round 10: 102 Blue
 * Round 11: 6 Red, 12 Blue, 12 Green, 3 Yellow
 * Round 12: 15 Blue, 10 Green, 5 Yellow
 * Round 13: 50 Blue, 23 Green
 * Round 14: 49 Red, 15 Blue, 10 Green, 9 Yellow
 * Round 15: 20 Red, 15 Blue, 12 Green, 10 Yellow, 5 Pink
 * Round 24: 20 Blue, 1 Green Camo
 * Round 27: 100 Red, 60 Blue, 45 Green, 45 Yellow

Alternate Bloons Rounds

 * Round 1: 10 Blue
 * Round 3: 15 Red, 6 Blue, 5 Blue Regrowth
 * Round 4: 10 Red, 33 Blue
 * Round 5: 12 Red Camo, 1 Red Camo Regrowth, 15 Blue Regrowth, 3 Green
 * Round 6: 10 Blue, 8 Green, 5 Green Regrowth
 * Round 7: 15 Blue Camo, 10 Blue Regrowth, 6 Green, 2 Black
 * Round 10: 22 Blue, 40 Green, 2 Lead
 * Round 11: 10 Blue, 10 Blue Regrowth, 20 Green, 3 Green Camo
 * Round 12: 20 Blue, 6 Green Regrowth, 3 Pink
 * Round 13: 50 Blue, 18 Yellow
 * Round 14: 49 Red, 10 Blue Regrowth, 5 Green Camo Regrowth, 4 Yellow Regrowth, 3 Black, 1 White
 * Round 15: 20 Blue, 15 Green, 12 Yellow, 10 Pink, 3 Purple
 * Round 19: 10 Blue, 5 Green Regrowth, 15 Pink, 2 Black
 * Round 21: 50 Red, 4 Blue
 * Round 27: 100 Red Camo, 60 Blue Camo, 45 Green Camo, 45 Yellow Camo
 * Round 33: 20 Red Camo, 13 Blue Camo

Bloons Pop!

 * Level X
 * Level X

Strategies
The Blue Bloon is only slightly faster than a Red Bloon, but they are relatively easy to beat, since they only take two hits to fully pop it. They, however, are dangerous in densely packed groups. Such densely packed groups only appear in Bloons TD Battles as bloon sends or in BTD6 in Round 4.

Good counters to Blue Bloons include Ninja Monkeys (BTD5 and BTD6), Dart Monkeys with Triple Darts, and Druids (BTD6 only).

Quotes
"50 Blues heading down next."

- Round 7 in Bloons TD 3

"Lots of blue ones coming up. Hope you're ready..."

- Round 7 in BTD1

"Coming up next are some Blue Bloons, then some more, then some more, then some more."

- BTD5 Round 10

Trivia

 * After M.O.A.B.s, Lead and Red Bloons (these have the same speed), B.F.B.s, Z.O.M.G.s and B.A.D.s, the Blue Bloon is the seventh slowest Bloon in the Bloons TD series.
 * The Mortar Tower's Bloon Buster upgrade, The Glue Gunner's Bloon Dissolver upgrade, the Beekeeper, the Sniper Monkey, and the Monkey Ace Spectre bombs, can pop a Blue Bloon in 1 hit, due to their ability to pop 2 or more layers.
 * Blue bloons were faster in BTD1 and BTD2, but they were slowed down in BTD3 and all later games to make those first few levels a bit easier.
 * A blue bloon can even outrun an Epic Range Super Monkey on some tracks. This was tested on MOAB Desert.
 * In Bloons Monkey City, Blue Bloon is not a valid max bloon type (except in Mobile).
 * This bloon's last appearence is on round 27 in BTD5/6.
 * Blue Bloons are one of three bloon types that never spawn from the entrance as a Camo Bloon in standard modes, along with Black Bloons and Zebra Bloons.
 * However, all three types of bloons can appear as camo in Alternate Bloons Rounds.