Bloons Tower Defense 4 has all the towers from the previous games, (except Spike-O-Pult, which is merged to the Dart Monkey) including 8 brand new ones, one of which has been confirmed.
Extreme cold slows down anything that comes near the Ice Tower.
(Note: When upgraded to Arctic Wind, Bloons that are in the Ice Tower's attack radius are slowed down 66%.)
Rank to Unlock: 24
Total Selling Price: $5,684
Mortar Tower[]
Mortar Tower.
Targets a specific area of ground over any distance with an explosive attack.
Hotkey: M
Cost: $825
Rank to Unlock: 7
Upgrades[]
Greater Accuracy
Cost: $200
Increases the mortar's accuracy.
Rapid Reload
Cost: $250
Increases the mortar's firing rate.
Bloon Buster
Cost: $800
Smashes through two layers of Bloons.
Mortar Battery
Cost: $2,000
Triple the pain.
Rank to Unlock: 23
Total Selling Price: $3260
Glue Gunner[]
Glue Gunner
Shoots a glob a glue at at Bloon, slowing it down. Ceramic Bloons can be glued but will not be slowed down.
Hotkey: G
Cost: $300
Rank to Unlock: 9
Upgrades[]
Stickier Glue
Cost: $120
Makes Glue last much longer.
Glue Soak
Cost: $200
Glue soaks through all layers of Bloons.
Corrosive Glue
Cost: $300
Glue eats through Bloons, dissolving them every two seconds.
Glue Splatter
Cost: $3000
Affects a large area around impact, soaking up to twenty Bloons at once.
Rank to Unlock: 25
Total Selling Price: $3,136
Monkey Beacon[]
Monkey Beacon
Increases the attack range of all towers within the beacon area. Has several useful upgrades that help out nearby towers, including its ultimate ability to call in Super Monkey Storms.
Hotkey: N
Cost: $1,000
Rank to Unlock: 10
Upgrades[]
Wider Influence
Cost: $500
Increases area of effect for all the beacon's abilities.
Jungle Drums
Cost: $1,500
Increases attack speed of all towers within the Monkey Beacon's radius.
Sonar Beacon
Cost: $280
Allows targeting of Camo Bloons for towers inside the radius.
Monkey Storm
Cost: $3500
Calls in a wave of Super Monkeys that wipes out all Bloons on screen. Unique.
(Note: After you purchase the Monkey Storm upgrade, a new upgrade will appear called Call Super Monkey Storm, cost $1000. Every time you buy it, every Bloon excluding MOABs and BFBs will be destroyed. But after each use you must wait approx. 65 seconds to use it again.)
Rank to Unlock: 18
Total Selling Price: $5,424
Monkey Ace[]
Monkey Ace
The only unit that moves, the Monkey Ace patrols the skies above the action, regularly strafing the area with powerful piercing darts.
Hotkey: A
Cost: $900
Rank to Unlock: 11
Upgrades[]
Pineapple Express
Cost: $200
Drops highly explosive pineapples.
Spy Plane
Cost: $350
Allows detection of Camo Bloons for all towers near the plane.
Rapidfire
Cost: $700
Increases attack rate.
Operation: Dart Storm
Cost: $3,000
Our darts will block out the sun.
(Note: The Operation: Dart Storm upgrade makes it so the Monkey Ace tower fires twice as many darts, twice as fast.)
Rank to Unlock: 27
Total Selling Price: $4,120
Monkey Buccaneer[]
Monkey Buccaneer
The only unit that can be placed in water - the Monkey Buccaneer has a long range and shoots a single, heavy dart.
Hotkey: U
Cost: $600
Rank to Unlock: 12
Upgrades[]
Grape Shot
Cost: $300
Adds a volley of deadly sharpened grapes to the attack.
Crow's Nest
Cost: $150
Allows detection of Camo Bloons for any towers in the radius.
Longer Canons
Cost: $180
Increases attack range of the ship's canons.
Battleship
Cost: $2,000
Total nautical domination.
(Note: The Battleship upgrade doubles the attack speed of the Monkey Buccaneer.)
Rank to Unlock: 21
Total Selling Price: $2,584
Monkey Apprentice[]
Monkey Apprentice
Trained in the ancient arts of monkey wizardry.Learns new spells with every upgrade. This unit is flexible and will continue randomly using his old spells with his new one.
Hotkey: W
Cost: $550
Rank to Unlock: 14
Upgrades[]
Intense Magic
Cost: $300
Wizard's magic orb becomes more powerful, pop up to seven Bloons at once.
Fireball
Cost: $300
Hurls a burning ball of flame that explodes on impact
Summon Whirlwind
Cost: $2,000
Whirlwind will blow Bloons away from the exit, but will thaw Bloons and remove glue
Tempest Tornado
Cost: $8,000
Tempest tornados pop Bloons as well as push them around. Affects up to 120 Bloons at once.
Rank to Unlock: 29
Total Selling Price: $8,920
Super Monkey[]
Super Monkey
Super Monkey shoots incredibly fast. Can upgrade to Laser Vision, then Plasma Vision. Ultimate upgrade is ultimately powerful. Find out for yourself...
Hotkey: S
Cost: $4,000
Rank to Unlock: 15
Upgrades[]
Super Range
Cost: $1,000
Super Range greatly increases Super Monkey attack radius.
Laser Vision
Cost: $3,500
Lasers can pop two Bloons at once, and can pop frozen Bloons.
Plasma Vision
Cost: $4,000
Plasma shoots twice as fast and vaporizes everything it touches
Sun God
Cost: $20,000
Legends speak of a being that fears no Bloon.
(Note: The Sun God upgrade shoots a little bit faster and divides into three beams.)
Rank to Unlock: 30
Total Selling Price: 26,000
Banana Farm[]
Banana Farm
Generates extra money at the end of every round, but doesn't attack anything. Can upgrade to increase money bonus.
Hotkey: F
Cost: $1,000
Rank to Unlock: 16
Upgrades[]
More Bananas Cost: $400 Increases money generated to one hundred twenty per round.
Banana Plantation Cost: $1,200 Banana Plantation generates two hundred fifty money per round.
Banana Republic Cost: $2,500 Banana Republic pulls in a cool five hundred money per round.
Banana Research Facility Cost: $10,000 High Tech banana facility earns you a staggering two thousand money per round.Rank to Unlock: 28 (Total Selling Price: $12,080)
Dartling Gun[]
Dartling Gun
Shoots Darts rapidly but a little inaccurately to wherever your mouse is. You can decide exactly where this tower will shoot by moving your mouse wherever you want!
Hotkey: None yet
Cost: $1250
Rank to Unlock: 1
Upgrades[]
Steady Barrels Cost: $250 Steady Barrels reduces the spread of darts fired from the gun.
Powerful Shots Cost: $600 Darts fly out with greater speed, popping up to 3 bloons at once.
Increased Barrel Spin Cost: $2,500 Makes dartling gun fire much faster.
Laser Cannon Cost: $15,000 Converts to a powerful cannon that shoots rapid blasts able to cause massive bloon damage. Rank to Unlock: 33
Spike Factory[]
Spike Factory
Generates piles of Road Spikes and automatically drops them on the track near by. Leftover spikes disappear after each round.
Hotkey: none yet.
Cost: $700
Rank to Unlock: 1
Upgrades[]
Increased Production Cost: $595. Makes the factory produce spikes much faster.
Bigger Stacks Cost: $510. The factory makes piles of spikes instead of 5.
White Hot Spikes Cost: $300. White hot spikes can pop frozen and lead bloons.
Spike Storm Cost: $5950 Covers the whole path with spikes that go away over time. Rank to Unlock: 34
Place these road spikes on the track to pop Bloons. Can pop 10 Bloons before wearing out. Road Spikes last only until the end of the round. Hotkey: K Cost: $30Rank to Unlock: 5
Like all healthy food, Pineapples explode shortly after being placed, so don't put any down unless you want to blow up some Bloons. Hotkey: P Cost: $25Rank to Unlock: 8
Monkey Glue slows down Bloons. Each glob can glue twenty Bloons before wearing out. Monkey Glue only lasts until the end of the round. Hotkey: E Cost: $10Rank to Unlock: 13
