Double HP MOABs

Double HP MOABs is a mode in BTD6. It is an unlockable addon challenge for Hard mode, and is unlocked after completing Magic Monkeys Only. In this game mode, all MOAB-Class Bloons have double the amount of HP they normally have, and this stacks with fortified properties.

This directly limits certain (Instapop abilities of) towers such as MOAB Assassins & Ground Zero will no longer be able to instapop BFB layer or Admiral Brickell's Mega Mine moderately damaging a ZOMG.

MOAB Health
''*DDT, BAD (& Fortified ZOMG) doesnt appear on regular game mode (& doesnt count freeplay rules applied on Rounds 81+). ''

Strategy
Before Round 40 & 50 the game plays just like Standard Hard. Use those earlier rounds to build up a solid defense. Afterwards, it is advised to be more careful about MOAB-class bloons on round 52 onwards. Farming greedily before Round 40 is a good approach on most maps.

Tips

 * Farm hard for this game mode, because late mid/late game (Rounds 60-80) will be very tough to beat, especially for rounds such as Round 64, 75, and 77, where there are multiple grouped BFBs.
 * In early rounds such as 40, 50, 60 Monkey Pirates are recommended, they are especially strong against Fortified variants of Moab Class Bloons with their Moab Takedown later in the game. If affordable, Pirate Lord can easily remove Round 80 ZOMG as threat.
 * Ninja Monkey with Sticky Bombs is viable alternative that can remove MOABs as threat but will struggle against BFBs requiring 3 bombs to fully pop its layer.
 * Rounds 3-39 & 41 - 49 are exactly like normal Hard Mode, so use this opportunity to set up good income sources. IMF Loan in particular are excellent income sources, especially when paired with Benjamin and the Bank Deposits MK.
 * Use a MOAB Maulers to break apart early MOAB-class bloons. Fighter Planes are also useful for damaging groups of MOAB-class bloons from any distance, and can be upgraded to Operation: Dart Storm for good bloon popping power on top of the increased anti-MOAB missiles strength too. You can also use Moab Assassins for more popping power.

Trivia

 * Double HP MOABs used to be the third of the first Hard Difficulty path, but it's now become the second because of the removal of Half Starting Cash and the inclusion of Half Cash to replace in Version 2.0.0.