Extreme Difficulty

• Main Street, an Extreme track
• Bloon.png
  Bloontonium Lab, an Extreme track
• Tar Pits, an Extreme track
• The Extreme Difficulty tracks as seen in the Tracks menu.

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Extreme Difficulty is a Track Difficulty added to Bloons TD 5 on April 4, 2012. In order to play on any difficulty, Monkey Money must be paid. When the player completes the Track, they will receive a large amount of Awesome Points and a massive XP reward instead of Monkey Money (unless you are playing on Deluxe). Interim saves are disabled for Extreme Difficulty tracks.

The icons for the three difficulties are the Sniper Monkey with Point Five Oh upgrade, the Ray of Doom and the Sun God/Temple of The Monkey God head, respectively.

In BTD4, Extreme Difficulty tracks are simply marked as extremely difficult tracks, and fortunately do not cost anything to enter.

Tracks

Extreme Track Rules and Rewards

Currently, 5 Bloons TD 4 and 3 Bloons TD 5 Extreme Difficulty tracks exist:

• Bloons TD 4:
  • Jolly Roger
  • 1.21 Gigapops!
  • Bloonraker
  • Monkeys VS Bloons
  • MOAB-y Dick
• Bloons TD 5:
  • Main Street
  • Bloontonium Lab
  • Tar Pits

Rewards

Track	Attempt Costs	Reward on Easy	Reward on Medium	Reward on Hard	Reward on Impoppable
Main Street	25	100,000 XP 50, 900 or 6	250,000 XP 125, 1,200 or 7	500,000 XP 250, 1,800 or 8	TBA XP 9
Bloontonium Lab	50	250,000 XP 100, 900 or TBA	500,000 XP 250, 1,200 or TBA	1,000,000 XP 500, 1,800 or TBA	TBA XP TBA
Tar Pits	50	300,000 XP 150 or TBA	700,000 XP 300 or TBA	1,500,000 XP 600 or TBA	TBA XP TBA

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Note: Monkey Money rewards are exclusive to Deluxe, while Awesome Points awards are for the online version only. Also note that Impoppable Difficulty and Tokens are only available at BTD5 Mobile and BTD5 Steam.There's also a very unfair division of rewards, as the shown there are only for computer version, while mobile version has lower rewards(50 000/100 000/ 150 000/200 000 XP) for difficulties: easy/normal/hard/impoppable.

Trivia

• Because Bloons Tower Defense 5 Mobile uses an autosave system, saving can be done on Extreme Difficulty tracks.
• This is the only difficulty that doesn't give Monkey Money rewards and actually costs Monkey Money to play.
• You cannot enable Fast-Track Mode on Extreme Tracks, possibly because it would make the achievements easier.
• In Bloons TD 5 Mobile, while selecting the difficulty for an Extreme track, the usual Baby Monkey, Mortar Tower, Robo-Monkey, and Green Sun God icons are used rather than the Point Five Oh, Ray of Doom, and Sun God icons.
• In Bloons TD 5 iOS, the player could access Sandbox Mode. However, the player still had to pay the 50 fee to access an Extreme Difficulty track.
  • As of version 1.1, the player cannot play Sandbox Mode on Extreme Tracks, so it possibly was a glitch.
• This is the hardest track difficulty in BTD5.
• These Tracks have to be unlocked at a certain Rank before playing (50 for Main Street, 55 for Bloontonium Lab, and 60 for Tar Pits).
• On Bloons TD 5 Deluxe, Monkey Money is rewarded. However, they still require Monkey Money to play.
• In Bloons Tower Defense 5, all the extreme tracks have multiple paths.