Impoppable

Impoppable is the one-life difficulty of Bloons TD 6. You start on round 6, play all the way to round 100, and a single leaked bloon ends the game. Unlike CHIMPS, you keep Monkey Knowledge, Powers, farming, selling and Continues, which makes Impoppable the place to learn the late game before you attempt CHIMPS. This guide covers the exact rules, what makes it hard and how to get through every dangerous round.

Impoppable rules

• Lives: you have exactly 1 life and cannot gain more. The Mana Shield knowledge and Healthy Bananas are disabled. Corvus's Soul Barrier still works because it is not a normal life.
• Rounds: start on round 6, win after round 100.
• Starting cash: $650.
• Prices: towers and upgrades cost 20% more than on Medium, which is about 11% more than Hard. A $200 Dart Monkey costs $240.
• Bloon speed: the same as Hard.
• Freeplay rules after round 80: every Ceramic becomes a Super Ceramic, bloons get faster each round, and MOAB-class bloons gain 2% of their base health per round. A ZOMG on round 85 has 4,400 health instead of 4,000, and the round 100 BAD has 40% more health than its base value.
• Still allowed: Monkey Knowledge, Powers, Insta Monkeys, Banana Farms and other income, selling, and Continues.

Some effects that trigger when you lose lives become useless. The passive of Elite Defender needs a life lost to activate, and Ezili's Sacrificial Totem ability is disabled.

Unlocking Impoppable and rewards

Impoppable unlocks on a map after you beat Alternate Bloons Rounds there. Beating Impoppable unlocks CHIMPS.

• Monkey Money: 300 on Beginner, 600 Intermediate, 900 Advanced and 1,200 Expert for a first win. Replays pay 60, 120, 180 and 240. Mo' Monkey Money adds 10%.
• Insta Monkey: reaching round 100 always gives one.
• Medal: the Impoppable medal on the map card.
• Achievement: Poppable, for 25 Impoppable wins, gives 500 Monkey Money and three Super Monkey Storm powers.

Why Impoppable is hard

The price increase means every strategy costs more, while cash per pop is the same as on any other difficulty and drops from round 51 (50%), 61 (20%) and 86 (10%). You also start on round 6 with Greens arriving immediately, so there is no free early game. The big difference from Hard is the 20 extra rounds: freeplay scaling, DDTs from round 90, round 98's massive blimp wave and the BAD. A defence that wins Hard on round 80 usually has nowhere near enough damage for round 95.

Impoppable vs CHIMPS

• Prices: Impoppable is 20% above Medium; CHIMPS uses Hard prices, so CHIMPS towers are cheaper.
• Economy: Impoppable allows farms and income; CHIMPS only gives money from pops and round bonuses.
• Safety nets: Impoppable keeps Powers, Monkey Knowledge, selling and Continues; CHIMPS removes all of them.
• Rounds: both play rounds 6 to 100 with one life.

Because you can farm and sell, an Impoppable strategy can be greedier than a CHIMPS one. But Impoppable is also the best rehearsal for CHIMPS, so try to win at least once without leaning on Powers before moving on.

Impoppable round-by-round danger list

• Round 6: Greens spawn instantly. Your opening must handle them on its own.
• Round 24: first camo bloon. A Camo Trap power or camo detection is needed.
• Round 28: six Lead bloons.
• Round 33: camo Reds and Yellows.
• Round 40: the first MOAB.
• Rounds 45 to 50: fortified Leads, camo Purples, fortified Ceramics and two MOABs on round 50.
• Round 59: 50 camo Leads with regrow Ceramics.
• Round 60: the first BFB.
• Round 63: 122 Ceramics and 75 Leads.
• Round 64: fortified MOABs.
• Round 76: 60 regrow Ceramics.
• Round 78: the huge ceramic rush with 72 camo Ceramics.
• Round 80: the first ZOMG.
• Round 81: 17 BFBs and Super Ceramics from now on.
• Rounds 85 and 87: two and then four ZOMGs.
• Round 90: first DDTs, plus camo regrow fortified Leads.
• Rounds 92 to 98: the number of blimps climbs every other round. Round 95 brings 30 DDTs, and round 98 sends 30 fortified BFBs with 8 ZOMGs.
• Round 99: 60 MOABs and 9 fortified DDTs.
• Round 100: the BAD.

Best heroes for Impoppable

• Benjamin: his income makes the expensive late game far easier, and it works in Impoppable (unlike CHIMPS).
• Sauda and Quincy: strong, cheap starts. Sauda has camo detection from the beginning.
• Obyn Greenfoot: excellent with Druid and Magic Monkey builds.
• Etienne: gives all towers camo detection from level 8, which makes the DDT rounds much easier.
• Captain Churchill, Psi and Adora: strong late-game damage once you can afford them.

Best towers and crosspaths

• Farming: Banana Farms are worth it on most maps. A Monkey Bank (0-3-x) or IMF Loan (0-4-x) stacks cash, and Marketplace (0-0-3) pays cash straight into your account. Start farms once your early defence is safe.
• Support: Alchemist with Berserker Brew (3-x-x), Monkey Village with Radar Scanner (0-2-x) or Monkey Intelligence Bureau (0-3-x).
• Ceramics: Inferno Ring Tack Shooters, Dragon's Breath and Summon Phoenix Wizards, and strong Druids.
• Blimps: Maim MOAB Snipers, First Strike Capability Subs, MOAB Mauler and MOAB Assassin Bomb Shooters, and Beast Handler sharks for groups.
• Safety net: a Perma-Spike Spike Factory (0-2-5 or similar) near the exit catches small leaks, which matters a lot when Mana Shield is disabled. Blowback towers like Downdraft (0-3-x Heli Pilot) or Druid of the Storm (3-x-x) push leaking bloons back up the track.
• DDTs: a Signal Flare Mortar (0-0-3) removes camo from DDTs. Combine it with damage that is not sharp or explosive, or with Monkey Intelligence Bureau.

Monkey Knowledge and Powers that help

• Pre-Game Prep places spikes before round 6 and helps your opening a lot. Do not rely on it alone, because bloons entering near the spikes can eat them quickly.
• Camo Trap, Road Spikes and Glue Trap patch weak rounds.
• MOAB Mine and Time Stop can rescue a blimp round.
• Cash Drop and Monkey Boost help you push through round 95 to 100.

Step-by-step Impoppable game plan

1. Opening: place your hero and one cheap damage tower that can handle round 6 Greens.
2. Rounds 7 to 23: build just enough defence, then start farming.
3. Rounds 24 to 28: add camo and lead coverage.
4. Rounds 30 to 50: keep farming, but add your MOAB answer before round 40 and a buff Alchemist or Village.
5. Rounds 50 to 63: build the ceramic defence you will carry into the late game. Test it on 59 before 63 arrives.
6. Rounds 64 to 80: upgrade to Tier 4s and your first Tier 5. Sell farms when you need the cash for defence; income is worth less every round now.
7. Rounds 81 to 94: prepare for DDTs with full camo coverage before round 90.
8. Rounds 95 to 100: spend everything. Save a Power or two for round 98 and the BAD.

Common mistakes

• Farming so greedily that one early leak ends the run. With one life, safety comes first.
• Treating a Hard strategy as enough. Impoppable's rounds 81 to 100 need far more damage.
• Forgetting camo detection for DDTs on round 90.
• Not leaving a safety net near the exit.
• Using every Power early and having nothing left for round 98 or 100.

Best maps to start Impoppable

Long, single-path Beginner maps with room to build are the easiest: Logs, Cubism, Monkey Meadow and End of the Road are good first targets. Then move to Intermediate and Advanced maps for more Monkey Money. Our Impoppable runs on the BTD6 Master YouTube channel show complete builds for many maps. Once a map is done, try CHIMPS on it while the round knowledge is fresh, and check the Difficulties page for how prices compare.

Frequently asked questions

How many lives do you get in Impoppable?

One. You cannot gain more lives in Impoppable, and Mana Shield is disabled.

What round does Impoppable end on?

Impoppable starts on round 6 and ends after round 100, which sends the BAD.

How much more do towers cost on Impoppable?

20% more than on Medium, or about 11% more than on Hard. CHIMPS uses the cheaper Hard prices.

Can you use Powers and Monkey Knowledge in Impoppable?

Yes. Impoppable keeps Powers, Insta Monkeys, Monkey Knowledge, farming, selling and Continues.

How do you unlock Impoppable in BTD6?

Beat Alternate Bloons Rounds on the map. ABR itself unlocks after Hard Standard.

What is the best hero for Impoppable?

Benjamin is the strongest choice on maps where you can farm safely, because his income pays for the expensive late game. On harder maps, a safe early hero such as Sauda or Quincy is often the better pick.

Do you get an Insta Monkey for beating Impoppable?

Yes. Beating round 100 always rewards one Insta Monkey, on top of the medal and Monkey Money.

Is Impoppable harder than CHIMPS?

No. CHIMPS uses the same rounds but removes income, selling, Powers and Monkey Knowledge, which makes it harder even with cheaper prices.