Track Difficulty


 * This article is about the difficulty on various tracks. It is not to be confused with Difficulty.

Track Difficulty is how hard or challenging a track is, according to the developers. This was introduced in BTD4 and was also in BTD4 Expansion. There are 5 track difficulties: Beginner, Intermediate, Advanced, Expert, and Extreme (introduced in Bloons TD 4 iOS).

Bloons Tower Defense 4
In the computer version of Bloons TD 4, there are 9 tracks: 3 beginner, 3 intermediate, 2 advanced, and 1 expert. (asterisk * = available in iOS games, while plus sign + = available in BTD5 Deluxe) Note: Military Base is a track in Bloons TD 4 iOS and in Bloons TD 5 Deluxe.
 * Beginner
 * Ocean Road* +
 * Sweet Tooth*
 * Firecracker*
 * Intermediate
 * Tap Track
 * Pool Table* +
 * World Tour*
 * Advanced
 * DNA Test*
 * River Bed*
 * Expert
 * Ant Hill*

Bloons Tower Defense 4 Expansion
In Bloons TD 4 Expansion, there is 1 track for each track difficulty. Although, the Premium Tracks from BTD4 are included in BTD4 Expansion, adding to the track total (see below for the premium tracks). Here are the 4 "base" tracks (asterisk * = available in iPhone game):
 * Beginner
 * Sandy Spiral
 * Intermediate
 * Subterranean Sewers
 * Advanced
 * Monkey Temple*
 * Expert
 * Triangle of Insanity

Premium Tracks (BTD4)
Among the premium tracks of Bloons TD 4, there are 7 tracks: 1 beginner, 2 intermediate, 2 advanced, and 2 expert. There is also a Track Pack that includes all the tracks of the premium tracks at a discounted price. (asterisk * = available in iPhone game while plus sign + = available in BTD5 Deluxe)
 * Beginner
 * Daisy Chain*
 * Intermediate
 * Blue Laser*
 * Clifftop Track
 * Advanced
 * Grasslands Track
 * Inter-Dimensional Track
 * Expert
 * High-Tech Track
 * Rail Track*+

Bloons Tower Defense 5
In Bloons TD 5, there are 41 tracks:
 * Beginner
 * Monkey Lane
 * Park Path
 * The Rink (added on Feb 2, 2012)
 * Space Truckin' (added on Aug 30, 2012)
 * Z Factor (added on Dec 13, 2012)
 * Brick Wall (added on Jan 31, 2013)
 * Pumpkin Patch (added on Oct 25, 2013)
 * Maze (added on Oct 25, 2013)
 * Fireworks (added on Aug 28, 2013)
 * North Pole
 * 3 Times Around (added on Dec 19, 2013)
 * Lobby (added on Mar 19, 2014)
 * Snowy Backyard (added Dec 13, 2016)
 * Intermediate
 * Bloon Circles
 * Archipelago
 * Snake River (added on Apr 4, 2012)
 * Dockside (added on Jul 19, 2012)
 * Slalom (added on Sep 6, 2012)
 * Jungle (added on Jun 13, 2013)
 * Country Road (added on Aug 28, 2013)
 * Ice Flow (added on Dec 19, 2013)
 * Lava Fields (added on Dec 19, 2013)
 * Water Hazard (added on Feb 7, 2014)
 * Advanced
 * Mount Magma
 * Switch
 * Lightning Scar (added on May 10, 2012)
 * Downstream (added on Nov 8, 2012)
 * The Eye (added on Dec 13, 2012)
 * The Great Divide (added on May 1, 2013)
 * Scorched Earth (added on Oct 25, 2013)
 * Rink Revenge (added on Dec 19, 2013)
 * Dune Sea (added on Feb 7, 2014)
 * Crypt Keeper
 * Expert
 * Clock (unlocked at Rank 28)
 * Tunnels (unlocked at Rank 32, added on Aug 28, 2013)
 * Castle (unlocked at Rank 34)
 * Death Valley (unlocked at Rank 40, added on Aug 3, 2012)
 * Drag Strip (unlocked at Rank 41, added on Aug 16, 2012)
 * Tree Tops (unlocked at Rank 43, added on Oct 25, 2013)
 * Runway (added on Dec 19, 2013)
 * Down the Drain (unlocked at Rank 45, added on Mar 19, 2014)
 * Extreme
 * Main Street (unlocked at Rank 50, added on May 10, 2012)
 * Bloontonium Lab (unlocked at Rank 60, added on Apr 4, 2012)
 * Extreme
 * Main Street (unlocked at Rank 50, added on May 10, 2012)
 * Bloontonium Lab (unlocked at Rank 60, added on Apr 4, 2012)
 * Bloontonium Lab (unlocked at Rank 60, added on Apr 4, 2012)

Bloons Tower Defense 5 Deluxe
Bloons TD 5 Deluxe has all the tracks in BTD5, four from BTD4, and six new tracks:
 * Beginner
 * Bloonhenge
 * Intermediate
 * Banana Factory
 * White MOAB
 * Advanced
 * Floating Islands
 * Tubular
 * Expert
 * Ascension

Bloons Tower Defense 5 iOS
There are 5 new tracks for Bloons TD 5 Mobile. It also has all the tracks from Bloons TD 5.
 * Beginner
 * Roswell
 * Intermediate
 * Bloon of Clubs
 * Workshop (added on Mar 22, 2013)
 * Advanced
 * Phase Portal
 * Expert
 * Double Double Cross

Bloons Tower Defense 6
In Bloons TD 6 there are currently 58 tracks.
 * Beginner
 * Monkey Meadow
 * Tree Stump
 * Town Center
 * The Cabin
 * Skates
 * Lotus Island
 * Candy Falls
 * Winter Park
 * Carved
 * Park Path
 * Alpine Run
 * Frozen Over
 * In The Loop
 * Cubism
 * Four Circles
 * Hedge
 * End Of The Road
 * Logs
 * Intermediate
 * Quiet Street
 * Bloonarius Prime
 * Balance
 * Encrypted
 * Bazaar
 * Adora's Temple
 * Spring Spring
 * KartsNDarts
 * Moon Landing
 * Haunted
 * Downstream
 * Firing Range
 * Cracked
 * Streambed
 * Chutes
 * Rake
 * Spice Islands
 * Advanced
 * Sunken Columns
 * X Factor
 * Mesa
 * Geared
 * Spillway
 * Cargo
 * Pat's Pond
 * Peninsula
 * High Finance
 * Another Brick
 * Off The Coast
 * Cornfield
 * Underground
 * Expert
 * Sanctuary
 * Ravine
 * Flooded Valley
 * Infernal
 * Bloody Puddles
 * Workshop
 * Quad
 * Dark Castle
 * Muddy Puddles
 * #Ouch

Bloons Adventure Time TD
In Bloons Adventure Time TD, there are currently 67 tracks, 55 of them are accessible without owning premium characters beforehand (asterisk * = premium track). Unlike tracks from the main BTD series, BATTD uses skulls to designate track difficulties, ranging from one to five skulls. One or two-skull difficulty tracks are roughly equivalent to Beginner tracks, while three, four, and five skull tracks can be considered Intermediate, Advanced, and Expert tracks respectively.


 * Skull.png
 * Apple Forest
 * Candy Throne Room
 * Enchiridion
 * Sinking
 * Snow Plains
 * Tree Trunks' House
 * Treefort Exterior
 * Underwater Junction
 * Skull.pngSkull.png
 * All Aboard*
 * Candy Fountain
 * Chasm of the Deep
 * Fool's Cave*
 * Forest Home
 * Ice King's Throne Room
 * Lava Pools
 * Picnic Time*
 * Pizza Sassy's*
 * Skull.pngSkull.pngSkull.png
 * Back Door
 * Behind the Scenes
 * Bridge and Tower
 * Candy Forest
 * Candy Convenience Store
 * Candy Kingdom Streets
 * Crown Capers
 * Crying Mountain
 * Crystal Ants*
 * Desert of Wonder
 * Fire Kingdom Castle
 * Fish Parliament
 * Flame Kitchen
 * Floating
 * Heirophant's Forest*
 * Lady's House*
 * Lemongrab Fortress
 * Make Out Point*
 * Mountain Path
 * Mystery Doors
 * Path Choice
 * River Run
 * Tear Drops
 * Train Armory*
 * Underwater Mall
 * Underwater Trench
 * Wizard Royale
 * Skull.pngSkull.pngSkull.pngSkull.png
 * Black Ice
 * Candy Dungeon
 * Candy Graveyard
 * Chamber of the Frozen Blades
 * Crystal Cave
 * Empress Throne*
 * Fire Trap
 * Giant Skull
 * Igloos
 * Infinity*
 * Loch of Phantoms
 * Lumpy House
 * Over-Throne Room
 * Parking Lot
 * Pep But's Lab*
 * Reconditioning Chamber
 * Roughhouser Village
 * Showtime
 * Sinister Caves
 * Supermonkey Villa
 * Wrecked Boat
 * Skull.pngSkull.pngSkull.pngSkull.pngSkull.png
 * Black Heart
 * Cursed Mirrors