Impoppable Difficulty is a difficulty in Bloons Adventure Time TD. There are 75 Rounds in this mode, and completing this mode rewards a Diamond Medal and a Diamond Chest. Unlike the other three difficulties, the Impoppable Difficulty is locked and hidden initially (unless when playing a map in a seasonal event) and must be unlocked by completing Extreme Difficulty on the respective track. It is the hardest type of difficulty in the game.
Similar to the mode with the same name in other BTD games, the player starts with only 1 life, although Powers like Apple Pie (as in Version 1.7) or Trinkets like Stone Skin Potion still add extra lives. Also similar to the BTD6 Impoppable Difficulty, the highest ranked Bloon for this mode is BAD (Fortified BAD if the difficulty has Fortified modifier), which appears on the final round, and the second highest ranked Bloon, the DDT, first appears on Round 69 with 580 health and 1.27x speed upon ramping, requiring the player to be well prepared for them. Impoppable Difficulty also has many difficulty modifiers for each track.
Trivia[]
- If you leak a bloon and pop the last bloon at the same frame on Round 75 in this mode, the game defines that you completed the level, while the round counter is 74 instead of usual 75.
- This bug also occurs when you pop the last bloon while Time Travel Machine is activating.
- It is possible to beat Impoppable under C.H.I.M.P.S. rules with only using allies in Candy Throne Room and Sinking.
- While C, H, I, P, and S are same as their BTD6 counterpart, M stands for No Weapons or Trinkets, equivalent to Back to Basics, as Weapons and Trinkets in BATTD do similar things like Monkey Knowledge. Allies are allowed, since they require in-game cash to afford it like heroes in Bloons TD 6.
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