Bloons Tower Defense 4

Bloons Tower Defense 4 is the fourth installment of the Bloons Tower Defense series, and was released on Oct 26, 2009. New features include updated graphics, new towers, Bloons types, two new modes, and premium upgrades available for purchase with MochiCoins (Or Kreds, if on Kongregate). Below is an in-depth look on everything BTD4 has to offer. There is a "sequel" called Bloons TD 4 Expansion.

(Note: All prices for towers/upgrades are in Medium Difficulty, Apopalypse Mode and Sandbox Mode.)

- Every fourth upgrade, or "super upgrade", has to be unlocked separately from the towers.

Dart Monkey
''Shoots a single dart that pops a single Bloon. Can upgrade to a spike-o-pult with a level four upgrade.''

Hotkey: D

Cost: 200

Upgrades

 * Piercing Darts

Cost: 140

Darts can pop two Bloons instead of one.


 * Long Range Darts

Cost: 90

Gives the monkey more throwing distance.


 * Spike-O-Pult

Cost: 300

Gives the monkey a catapult that hurls giant spiked balls.


 * Triple Shot

Cost: 1,000

Spike-O-Pult becomes three times a deadly.

(Total Selling Price: 1,384)

Tack Shooter


''Shoots a volley of tacks in eight directions. Has short range, but is good for thinning out Bloons at intersections and corners.''

Hotkey: T

Cost: 360

Upgrades

 * Faster Shooting

Cost: 210

Increases the fire rate of the Tack Shooter.


 * Extra Range

Cost: 100

Increases the attack radius of the Tack Shooter.


 * Blade Shooter

Cost: 280

Shoots razor sharp bladed discs instead of tacks!


 * Ring of Fire

Cost: 2,500

Throws out a fiery hot burst of flame that can pop anything.

(Total Selling price: 2,760)

Boomerang Thrower
''Throws a boomerang that follows a curved path back to the tower. Can pop multiple Bloons at once. ''

Hotkey: R

Cost: 400

Upgrades

 * Multi Target

Cost: 250

Boomerang will hit up to seven Bloons at once.


 * Sonic Boom

Cost: 100

Sonic boomerangs smash through frozen Bloons.


 * Glaive Thrower

Cost: 280

Glaives slice through up to twelve Bloons at once!


 * Lightsabre Thrower

Cost: 1,850

Lightsabre slices through anything and everything up to seventy Bloons at once!

(Total Selling Price: 2,304)

Bomb Tower
''Launches a bomb that explodes on impact. Can destroy many Bloons at once.''

Hotkey: B

Cost: 700

Upgrades

 * Bigger Bombs

Cost: 400

Big bombs affect a larger area.


 * Longer Range

Cost: 200

Can shoot bombs further than normal.


 * Missile Launcher

Cost: 210

Shoots fast missiles instead of bombs that go faster, farther, and pop more.

(Note: The Missile Launcher upgrade also grants a slight fire rate increase.)


 * MOAB Mauler

Cost: 765

Special missiles cause 10x damage to MOABs and BFBs.

(Total Selling Price: 1928)

Ice Tower
''Freezes nearby Bloons with every pulse. Frozen Bloons are immune to anything sharp.''

Hotkey: I (Uppercase 'i')

Cost: 380

Upgrades

 * Improved Ice Tower

Cost: 225

Increased freeze time and attack radius.


 * Permafrost

Cost: 100

Slows Bloons Down even after they thaw out!


 * Snap Freeze

Cost: 400

Freezes so violently that Bloons will pop before freezing!


 * Arctic Wind

Cost: 6,000

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%.)

(Total Selling Price: 5,684)

Mortar Tower
Targets a specific area of ground over any distance with an explosive attack.

Hotkey: M

Cost: 825

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.

(Total Selling Price: 3260)

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

*At time of writing, repeat of the word "at" is indeed in the Glue Gunner's description.

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: 300

''Affects a large area around impact, soaking up to twenty Bloons at once. ''

(Total Selling Price: 3,136)

Monkey Beacon
''Increases the attack range of all stuff 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

Upgrades

 * Wider Influence

Cost: 500

Increses area of effect for all the beacons abilities.


 * Jungle Drums

Cost: 1,500

Increases attack speed of all towers withing 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-850 on easy. 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.)

(Total Selling Price: 5,424)

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

(Note: The Monkey Ace tower moves in a vertical figure-8 that covers the height of roughly the entire screen.)

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.)

(Total Selling Price: 4,120)

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

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 the of Monkey Buccaneer.)

(Total Selling Price: 2,584)

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

Upgrades

 * Intense Magic

Cost: 300

Wizard's magic orb becomes more powerful, pop* up to seven Bloons at once.

*At time of writing, this gramatical error is indeed in this upgrade's description.)


 * 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.''

*At time of writing, this spelling error is indeed in this upgrade's description.

(Total Selling Price: 8,920)

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: 3,400

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: 3400

Plasma shoots twice as fast and vaporizes everything it touches!


 * Sun God

Cost: 17,000

Legends speak of a being that fears no Bloon.

(Note: The Sun God upgrade shoots a little bit faster and divides into three beams.)

(Total Selling Price: 26,000)

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

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 thousdand money per round.

(Total Selling Price: 12,080

Road Spikes
''Place these road spikes on the track to pop Bloons. Can pop ten Bloons before wearing out. Road Spikes last only until the end of the round.''

Hotkey: K

Cost: 30

Pineapple
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: 25

Monkey Glue
''Monkey Glue slows down Bloons. Each glob can pop twenty Bloons before waering out. Monkey Glue only lasts until the end of the round.''

Hotkey: E

Cost: 10

Red Bloon
RBE : 1

speed:slow

Blue Bloon
RBE: 2, contains a red.

Speed: Faster than red.

Size: Bigger than red.

Green Bloon
RBE: 3, contains a blue.

Speed: Faster than blue.

Size: Bigger than blue.

Yellow Bloon
RBE: 4, contains a green.

Speed: Faster than green.

Size: Bigger than green.

Pink Bloon
RBE: 5, contains a yellow.

Speed: Faster than yellow. Fastest Bloon in the game.

Size: Bigger than yellow.

Black Bloon
RBE 11, contains two pinks. Immune to bombs.

Speed: Like a blue bloon

Size: Tiny. Like half a red

White Bloon
RBE 11, contains two pinks. Immune to freezing.

Speed: Like a blue/black bloon.

Size: Like a black bloon.

Camo Bloon
RBE 11, contains two pinks. Most towers need an upgrade to detect them; some upgrades allow nearby towers to detect them. (Note: In the game, the camo bloon's RBE says 9 but should be 11)

Speed: Like a green bloon

Size: Like a blue bloon

Zebra Bloon
RBE 23, contains a black and a white. Immune to bombs and freezing.

Speed: Like a green bloon

Size: Like a blue bloon

Lead Bloon
RBE 23, contains 2 blacks. immune to anything sharp. (Darts, blades, etc.)

Speed: Like a red bloon

Size: Like a blue bloon

Rainbow Bloon
RBE 47, contains two zebras.

Speed: Faster than a green bloon; slower than a yellow bloon

Size: Like a blue bloon

Ceramic Bloon
RBE 103. Contains two rainbows. Takes 10 hits to break and although it can be glued, it will not be slowed by it.

Speed: Like a rainbow bloon

Size: Like a blue bloon

M.O.A.B.
RBE 613. After 200 hits, breaks open to reveal four ceramic Bloons.

Speed: Like a red/lead bloon

Size: Huge

B.F.B
RBE 2884. After 700 hits, breaks to reveal four MOABs.

Speed: REEEAAALLLLY Slow (A bit slower than a red bloon)

Size: Bigger than a M.O.A.B

Easy Difficulty
On Easy mode, things are cheaper than usual (85% of medium) and you start with 200 lives. There are 50 rounds to pass.

Medium Difficulty
On Medium mode, things are regularly priced (see above) and you start with 150 lives. There are 60 rounds to pass.

Hard Difficulty
On hard mode, things are more expensive (108% of medium) and you start with 100 lives. There are 75 rounds to pass.

Sandbox Mode
In sandbox mode, you have unlimited (1,000,000) money and unlimited (100,000) lives. Things cost as much as in Medium mode (see above). In Sandbox mode, you can choose what Bloons to release and at what times. For example, you can click a button to release 20 Red Bloons, 5 ceramic Bloons, or 1 MOAB. You can try releasing other bloons, as well!

(Note: This mode is unlocked once rank 26 is acheived.)

Apopalypse
In Apopalypse mode, you have as much money and lives as in Medium, and things cost as much as in Medium (see above). Once you click 'Start Round', Bloons will never stop coming and continue to get stronger and stronger. Even though Bloons never stop coming, rounds still exist, they are just started automatically, therefore Banana Farms still grant you a money bonus at the end of each round. If no road spikes/monkey glue were used completely, they'll still exist.

(Note: This mode is unlocked once rank 31 is acheived.)

Ranks
Main Article: Ranks 

Another improvement in BTD4 is that there is a system of ranks.

Sample:

Rank 1: Dart Monkey (You get it from the start)

Rank 2: Tack Shooter

Rank 3: Boomerang Thrower

Premium Upgrades
Bloons tower Defense 4 features premium upgrades for various things, such as new tracks and new abilities for towers.

Upgrade/Cost (in MochiCoins or Kreds)

Tracks
Flower Track/1,20

Space Age Track /1,200

Clifftop Track /1,200

Grasslands Track /1,200

Inter-Dimensional Track /1,200

High-Tech Track /1,200

Railway Track /1,200

Upgrades
Frag Bombs /Free

Effect: Bomb Towers' bomb's explosions send off shards in all directions, popping even Bloons immune to bombs when active.

Double Ranga /1,200

Effect: Boomerang Towers become ambidextrous and throw two projectiles instead of one.

Exploding Darts /600

Effect: When activated, Dart Monkeys' darts will explode once they reach the end of their maximum pops, which pop lead bloons.

Crystal Ball /800

Effect: When activated, it greatly increases Monkey Apprentices' attack range and allows detection of Camo Bloons.

Dreadnaught /1,000

Effect: When activated, instead of darts, Monkey Buccaneer towers will now fire flaming canon balls capable of popping frozen and lead Bloons.

Digital Aplification /1,200

Effect: When activated, Monkey Beacon towers have a massively enlarged radius.

Monkey Tycoon /1,000

Effect: When activated, selling towers results in a 100% refund rather than 75% normaly.

Healthy Bananas /1,200

Effect: When activated, Banana Farm towers grant +1 life per upgrade per round.

Double Cash /1,000

Effect: While selecting the mode, you may turn Double Cash on or off. When on, each popped Bloons grants 2 money instead of one, and you start with double money. For example, a popped red=2 money, a popped green=6 money, etc.

Buy Rank 31 /1,000

Effect: Instantly turns you into rank 31, unlocking all modes and final tower upgrades.

Buy Every Upgrade /8,000

Effect: Buys every premium upgrade. Saves 1,000 MochiCoins.

Track Pack /6,000

Effect: Buys every premium track. Saves 2,400 MochiCoins.

Trivia
The actual last round is round 250 because
 * 1) There are 999 B.F.B.'s.,
 * 2) The B.F.B's are not programmed to pop,
 * 3) There are no rounds programmed after, so there is no point in hacking past it

PATCHED

 * Same as Bloons Tower Defense 3, but you have to move the mouse a little.


 * The hot keys allow use of the towers, even if not unlocked.

Working

 * Using hotkey abuse, you can place anything anywhere.
 * When the Boomerang thrower throws his boomerang, his boomerang sometimes wont return to the tower but will vanish at about two thirds of the way around.