Bloons Tower Defense 4

Bloons Tower Defense 4 is the fourth installment of the popular Bloons Tower Defense series, released on October 26, 2009. The game has many new features, which include updated graphics, new towers, etc.

Bloons Tower Defense 4 has an expansion, called Bloons Tower Defense 4 Expansion. The expansion also has new features, including new maps and Specialties, which affect the cost of certain things.

Gameplay
Bloons Tower Defense 4's gameplay is extremely similar to the previous three games. As said above, Bloons Tower Defense 4 has many new features. These include:
 * Refined graphics. Bloons Tower Defense 4's graphics are heavily improved from Bloons Tower Defense 3.


 * New maps. The game has 6 free maps, 1 beginner map, 3 intermediate maps, 1 advanced map, and 1 expert map. There are an additional 8 maps, but they must be bought with varying amount of NK Coins.
 * 6 New Towers. These are the Glue Gunner, Monkey Ace, Mortar Tower, Monkey Apprentice, Banana Farm, and Monkey Buccaneer.


 * New and improved upgrades for towers.
 * Brand new Bloon types, some with their own special abilities.
 * Two new modes, Apopalypse Mode and Sandbox Mode.

"Bloons will come non-stop until you run out of lives."

- Official description of Apopalypse

In Apopalypse Mode, the gameplay is mostly the same, except for one key difference. There are no rounds,

and Bloons get tougher over time. The costs of tower and upgrades are equivalent to Medium Difficulty.

"In Sandbox Mode, you have unlimited money and lives and you can choose which Bloons come and when."

- Official Description

In Sandbox Mode, the player starts with $1,000,000 and 100,000 lives. The player can spawn any type of Bloons at any time. The prices are in Medium.

Towers
Bloons Tower Defense 4 features the same towers from the previous games, as well as six brand new types of towers.

Red Bloon
RBE : 1

Speed: Like a Lead Bloon/MOAB.

Size: Half bigger than a black/white.

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: 2x the speed of a 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. About half the size of a red.

White Bloon
RBE 11, contains two pinks. Immune to freezing.The Arctic Wind Tower can still slow it down.

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.The Arctic Wind Tower can still slow it down though

Speed: Like a green bloon

Size: Like a blue bloon

Lead Bloon
RBE 45, contains 4 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 green bloon

Ceramic Bloon
RBE 103. Contains two rainbow bloons. Takes 10 hits to break, revealing a rainbow bloon underneath as it takes damage. It can be glued, it will not be slowed by it.

Speed: Like a rainbow bloon

Size: Like a green bloon

M.O.A.B.
RBE 612. After 200 hits, breaks open to reveal four ceramic Bloons.

Speed: Like a red/lead bloon

Size: Huge

B.F.B
RBE 3,154. After 700 hits, breaks to reveal four MOABs.Strongest bloon in the game

Speed: Very 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.)

Premium Upgrades
Bloons Tower Defense 4 features Premium Upgrades for various new tracks and new abilities for towers.

Upgrade/Cost (in NK Coins)

Daisy Chain
Cost: 15 NK Coins

Space Age Track
Cost: 15 NK Coins

Clifftop Track
Cost: 15 NK Coins

Grasslands Track
Cost: 15 NK Coins

Inter-Dimensional Track
Cost: 15 NK Coins

High-Tech Track
Cost: 15 NK Coins

Railway Track
Cost: 15 NK Coins

Track Pack
Cost: 75 NK Coins

Effect: Buys every premium track. Saves 30 NK Coins.

Cash Injection
Cost: 3 NK Coins

Effect: One-time cash boost of $10,000. Only works for current game.

More Lives
Cost: 3 NK Coins

Effect: One-time boost of 200 lives. Only works for current game.

Frag Bombs
Cost: Free

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

Double Ranga
Cost: 15 NK Coins

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

Exploding Darts
Cost: 7 NK Coins

Effect: Darts now explode after their last pop, it also allows them to pop Lead Bloons.

Crystal Ball
Cost: 10 NK Coins

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

Dreadnaught
Cost: 12 NK Coins

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

Digital Amplification
Cost: 15 NK Coins

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

Monkey Tycoon
Cost: 12 NK Coins

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

Healthy Bananas
Cost: 15 NK Coins

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

Double Cash
Cost: 24 NK Coins

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
Cost: 12 NK Coins

Effect: Instantly turns you into rank 33/34, unlocking all modes and final tower upgrades.

All Premium Upgrades
Cost: 100 NK Coins

Effect: Buys every premium upgrade. Saves 24 NK Coins.

Trivia

 * The actual last round is round 250 because there are no rounds programmed after.
 * Round 250 has 999 B.F.Bs and you're gonna need to use some sort of cheat to reach that level.
 * There is a weird glitch that occurs when you play. Nothing appears!

Patched

 * The hot keys allow use of the towers, even if not unlocked.
 * You can no longer activate Premium Upgrades without even paying MochiCoins (This was done by clicking the edge of an upgrade button).

Not Yet Patched

 * Using hotkey abuse, you can place anything anywhere.
 * When the Boomerang thrower throws his boomerang, his boomerang sometimes won't return to the tower but will vanish at about two thirds of the way around.
 * If you click on a tower and then right click on the road, and get rid of the menu thing that comes up, you can place the tower on the road.
 * When there are many bloons on the screen, when the Bomb Tower shoots it's bomb/missile/MOAB Mauler, the player doesn't see it explode even if it hits a bloon.
 * On old computers, in the early levels, the game may freeze when you start a round, and then the round will be finished without a single bloon ever appearing on screen!

Rounds
50 on Easy

60 on Medium

75 on Hard

250 on Freeplay

Infinite on Apopalypse