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All for One BTD6

All for One and One for One is an achievement in Bloons TD 6, first introduced on Version 13.0. It can be achieved by achieving Hard Difficulty using only one tower at a time. It rewards 1 Monkey Knowledge Point.

Tips[]

  • A few Advanced Challenges on Hard that only allow one tower will instantly grant this achievement upon completion of the challenge.
  • Like other tricky challenges, always attempt on Logs, due to the map's long track that loops over itself multiple times.

Strategies[]

Feel free to add your strategy for earning this achievement here

  • In 22.0, a 0-5-2 Pirate Lord can solo up until round 63 (with a chance of a small leak at 46 if placed bad), which then can be swapped for 0-2-5 Prince of Darkness. On round 80 buy Pirate Lord again and use the ability. Tested on Cubism.
    • Retested on Standard Hard Logs on v23.2.3593; no leaks, achievement completed.
    • Retested on Standard Hard Logs on v27.1.4229; changed 0-2-5 Prince of Darkness into a 0-5-2 M.A.D no leaks, achievement completed.
    • Retested on Standard Hard Logs on v27.3.4285; changed 0-2-5 Prince of Darkness into 5-2-0 Apache Prime no leaks, achievement completed.
    • Retested on Standard Hard Logs on v28.3.4683; delayed the placement of 0-2-5 Prince of Darkness until round 76 no leaks, achievement completed.
    • Retested on Standard Cubism on v31.1.5282; No leaks, achievement completed. 0-2-5 Prince of Darkness cannot be delayed for this map.
    • Retested on Standard Hard Logs on v31.2; Changed 0-2-5 Prince of Darkness into 0-2-4 Spectre, Spectre was able to defeat round 80.
    • Retested on Standard Hard Logs on v33.0: A 0-5-2 Pirate Lord placed all the way to left of water will be able to attack the first lane and solo all 80 rounds with no leaks.
    • Retested on Standard Hard Logs on v35.0: A 0-5-2 Pirate Lord placed as mentioned above will solo all rounds with no leaks.
    • Retested on Standard Hard Logs on v37.3: A 0-5-2 Pirate Lord placed as mentioned above will solo all rounds with no leaks.
    • Retested on Standard Hard Cubism on v36.1: A 0-5-2 Pirate Lord placed as mentioned above will solo all rounds with no leaks.
    • Retested on Double HP MOABS Logs on v38.3: A 0-5-2 Pirate Lord placed as mentioned above will solo all rounds with no leaks.
    • Retested on Standard Hard Logs on v41.2: A 0-5-2 Pirate Lord placed as mentioned above will solo all rounds with no leaks.
    • Retested on Double HP MOABS Logs on v43.3: A 0-5-2 Pirate Lord placed as mentioned above will solo all rounds with no leaks.
  • One strategy is to start with a 0-2-4 Favored Trades for early game (prioritizing 0-2-0, then 0-2-2, then 0-2-4), then switch to a 5-2-0 Apache Prime for mid-late game.
    • Some bloons may leak using the Buccaneer, but not enough to cause a game over (Mana Shield MK is recommended). The Favored Trades provides extra income to help afford the Apache Prime sooner.
    • As of 22.0, the Apache Dartship costs too much to be available by round 40, but a 3-0-0 Heli Pilot can pop the MOAB depending on the map.
    • One dangerous round is 63, but the Apache Dartship is usually capable of dealing with the Ceramics.
    • Retested on 2 Player Co-Op Standard Hard Logs on v30.1.4987 and on Solo Standard Hard Logs on v30.2.5032:
      • Sell Monkey Buccaneer after round 39.
      • Purchase 3-2-0 Heli Pilot.
      • Upgrade to 4-2-0 Apache Dartship and 5-2-0 Apache Prime when affordable. Micro isn't necessary.
  • One strategy is to place Sauda in the small square space to the right of the pool in Resort, leveling her up as soon as possible, and using Sauda's abilities at crossings in the track to deal with Lead Bloons.
    • Retested on v31.2.5337: it's very important to use Sauda abilities in the right time. If you start some rounds, like 64 and 76, with no abilities at least half-loaded, you may have to spend some Monkey Money in "Continues" to restart the round with them fully loaded and ready to use.
  • Starting from Version 33.0, 0-5-2 Pirate Lord can completely solo past Round 80 on many Beginner Maps that have water.
  • One strat on Logs is to place down your free Dart Monkey down (if MK unlocked) and upgrade to a 0-2-3 Crossbow as soon as possible. Make sure to get that straight line pierce! Upgrade to a 0-2-4 Sharp Shooter. Sell after round 15ish, and use the money to buy a Buccaneer and place it in the central water spot. Upgrade to a 0-3-2 and then eventually get a 0-4-2 Monkey Pirates. After getting enough money to buy Pirate Lord, keep it there and you'll probably get the achievement. Tested in v42.3.7927. It's very important to time the MOAB Takedown ability to avoid leaks. (Pre-Game Prep MK and Mana Shield MK recommended) A few leaks may happen if you can't get the 0-4-2 Monkey Pirates before round 40. If 0-5-2 Buccaneer isn't working out, probably get a 5-0-2 Glaive Lord and maybe switch out after round 70ish to a 0-2-5 Crossbow Master at the start. (Get the straight line pierce lol) After clearing round 79, sell the Crossbow Master and get it back down somewhere else. You will need to do some selling and replacing micro a few times to pull this off.

Trivia[]

  • 28th/29th October 2019's Advanced Challenge can reward this achievement. This was likely unintentional.
    • Any other Advanced Challenge On Hard Difficulty that only allows one tower can also reward this achievement, such as 14th/15th December 2019's Advanced Challenge.
  • This achievement used to be a hidden achievement until an update.
  • It is possible to get this achievement with only powers. A video demonstrating this is here (specifically timestamp 15:21).
  • It is possible to get this achievement in Impoppable Difficulty, even though it requires a lot of skill.
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