List of upgrades in BTD4

This article lists all upgrades in Bloons TD 4. Costs are based on Medium difficulty.

Regular upgrades

Icon	Text	Tower	Tier	Cost
	More Bananas Increases money generated to 120 per round.	Banana Farm	1	$400
	Banana Plantation Banana plantation generates 250 money per round.	Banana Farm	2	$1,200
	Banana Republic Banana republic pulls in a cool 500 money per round.	Banana Farm	3	$2,500
	Banana Research Facility High tech banana facility earns you a staggering 2000 per round.	Banana Farm	4	$10,000
	Fast Deploy Makes the bee keeper attack much faster	Bee Keeper	1	$300
	Big Hive Larger hive can hold 10 bees instead of 6	Bee Keeper	2	$250
	Killer Bees Deadly killer bees fly twice as fast and pop bloons three times as fast!	Bee Keeper	3	$1,800
	The Swarm Unleash the swarm! Shoots 4 bees at a time, has a much larger range and can support 30 deployed bees at a time	Bee Keeper	4	$7,500
	Bigger Bombs Big bombs affect a larger area.	Bomb Tower	1	$400
	Longer Range Can shoot bombs further than normal.	Bomb Tower	2	$200
	Missile Launcher Shoots fast missiles instead of bombs that go faster, further and pop more.	Bomb Tower	3	$210
	MOAB Mauler Special missiles cause 10x damage to MOABs and BFBs.	Bomb Tower	4	$900
	Multi Target Boomerangs will hit up to 7 bloons at once.	Boomerang Thrower	1	$250
	Sonic Boom sonic boomerangs smash through frozen bloons.	Boomerang Thrower	2	$280
	Glaive Thrower Glaives slice through up to 12 bloons at once.	Boomerang Thrower	3	$100
	Lightsabre Thrower Lightsabre slices through anything and everything - up to 70 bloons at once!.	Boomerang Thrower	4	$1,850
	Piercing Dart Darts can pop 2 bloons instead of 1.	Dart Monkey	1	$140
	Long Range Darts Increases the range of your dart monkey.	Dart Monkey	2	$90
	Spike-o-pult Gives the monkey a catapault that hurls giant spiked balls.	Dart Monkey	3	$300
	Triple Shot Spike-o-pult becomes three times as deadly.	Dart Monkey	4	$1,100
	Steady Barrels Steady barrels reduces the spread of darts fired from the gun.	Dartling Gun	1	$250
	Powerful Shots Makes the darts fly out with greater speed, and makes them pop up to 3 bloons each.	Dartling Gun	2	$600
	Increased Barrel Spin Makes Dartling Gun fire much faster	Dartling Gun	3	$2,500
	Laser Cannon Converts to a powerful cannon that shoots rapid bursts able to cause massive bloon damage	Dartling Gun	4	$15,000
	Stickier Glue Makes glue last much longer.	Glue Gunner	1	$120
	Glue Soak Glue soaks through all layers of bloons.	Glue Gunner	2	$200
	Corrosive Glue Glue eats through bloons, dissolving them every 2 seconds.	Glue Gunner	3	$300
	Glue Splatter Affects a large area around impact, soaking up to 20 bloons at once.	Glue Gunner	4	$3,000
	Improved Ice Tower Increase freeze time and attack radius.	Ice Tower	1	$225
	Permafrost Slows bloons down even after they thaw out!	Ice Tower	2	$100
	Snap Freeze Freezes bloons so violently that bloons will pop before freezing!	Ice Tower	3	$400
	Arctic Wind Extreme cold slows down anything that comes near the ice tower.	Ice Tower	4	$6,000
	Pineapple Express Drops highly explosive pineapples.	Monkey Ace	1	$200
	Spy Plane Allows the detection of camo bloons for all towers near the plane.	Monkey Ace	2	$350
	Rapid Fire Incrases attack rate.	Monkey Ace	3	$700
	Operation: Dart Storm Our darts will block out the sun.	Monkey Ace	4	$3,500
	Intense Magic Wizard's magic orb becomes more powerful, pop up to 7 bloons at once.	Monkey Apprentice	1	$300
	Fireball Hurls a burning ball of flame that explodes on impact.	Monkey Apprentice	2	$300
	Summon Whirlwind Whirlwind will blow bloons away from the exit, but will thaw bloons and remove glue.	Monkey Apprentice	3	$2,000
	Tempest Tornado Tempest Tornados pop bloons as well as push them around. Affects up to 120 bloons at once.	Monkey Apprentice	4	$8,000
	Wider Influence Increases area of effect for all of the beacon's abilities	Monkey Beacon	1	$500
	Jungle Drums Increases attack speed of all towers within the monkey beacons radius.	Monkey Beacon	2	$1,500
	Sonar Beacon Allows targeting of camo bloons for towers in the radius.	Monkey Beacon	3	$280
	Monkey Storm Calls in a wave of super monkeys that wipe out all bloons on screen. Unique.	Monkey Beacon	4	$3,500
	Grape Shot Adds a volley of deadly sharpened grapes to the attack.	Monkey Buccaneer	1	$300
	Crow's Nest Allows detection of camo bloons for any tower in the radius.	Monkey Buccaneer	2	$150
	Longer Cannons Increases the attack range of the ships cannons	Monkey Buccaneer	3	$180
	Battleship Total nautical domination.	Monkey Buccaneer	4	$2,000
	Greater Accuracy Increases the mortars accuracy.	Mortar Tower	1	$200
	Rapid Reload Increases the mortars firing rate.	Mortar Tower	2	$250
	Bloon buster Smashes through 2 layers of bloons	Mortar Tower	3	$800
	Mortar Battery Triple the pain.	Mortar Tower	4	$2,000
	Increased Production Makes the factory produce spikes much faster	Spike Factory	1	$700
	Bigger Stacks The factory creates double size spike stacks	Spike Factory	2	$600
	White Hot Spikes White hot spikes can pop frozen and lead bloons.	Spike Factory	3	$350
	Spike Storm Every 15 seconds the factory generates a storm of short lived spikes filling up the whole track.	Spike Factory	4	$7,000
	Super Range Super range greatly increases Super Monkey attack radius.	Super Monkey	1	$1,000
	Laser Vision Lasers can pop 2 bloons at once, and pop frozen bloons	Super Monkey	2	$3,500
	Plasma Vision Plasma shoots twice as fast and vaporizes everything it touches	Super Monkey	3	$4,000
	Sun God Legends speak of a being that fears no bloon.	Super Monkey	4	$20,000
	Faster Shooting Increases the fire rate of the tack shooter.	Tack Shooter	1	$210
	Extra Range Increases the attack radius of the tack shooter.	Tack Shooter	2	$100
	Blade Shooter Shoots sharp razor bladed disks instead of tacks!	Tack Shooter	3	$280
	Ring of Fire Throws out a fiery hot burst of flame that can pop anything.	Tack Shooter	4	$2,500

Premium Upgrades

This section is empty. You can help out by adding to it.