Monkey v Monkey

Monkey v Monkey, often abbreviated as MvM, is an asynchronous multiplayer feature in Bloons Monkey City that allows players to send attacks to other players' cities. A player can send an attack to a random opponent or someone on their friend list by spending Bloontonium. An opponent can defend against an attack by playing a modified tile with increased difficulty and more difficult Bloons. If the attacker wins, the attacker steals City Cash from the opponent and may destroy some of the opponent's buildings, the attacker gains Honor, and the opponent loses Honor. If the defender wins, the defender gains Honor and the attacker loses Honor. Either way, the defender earns Bloontonium and has the option to send a revenge attack to the attacker. Players can research stronger Bloons to send to the opponent. Players can opt out of participating in MvM by entering Pacifist Mode.

Attacking

In the mobile version

List of themes

Icon	Name / description	Effect	Research required
	Cluster Chaos Send tightly clustered groups when possible.	Grouped Bloons are significantly more common and packed MOABs and BFBs can appear. This has the side effect of reducing the overall duration of rounds, speeding up the attack considerably.	—
	Round Ramp Bloons come weakest to strongest	All Bloon groups are arranged in order of their rank (i.e. the order in which Bloons are prioritized by Strong targeting). Stronger Bloons are slightly more numerous.	—
	Fast and Furious Speed over toughness	Packs of Yellow Bloons and Pink Bloons replace other Bloons, even on MOAB rounds, where they can replace Rainbow Bloons and Ceramic Bloons. Bloon groups are arranged in order of their rank like in Round Ramp, groups are marginally tighter, Lead Bloons are rare, and packed MOABs can appear.	Fast Bloons
	Hard and Heavy Extra leads and ceramics	Lead Bloons and Ceramic Bloons are significantly more common. Lead Bloons can appear as early as round 1 and Ceramic Bloons can appear as early as round 3.	Heavy Bloon Armor
	Cash Starve Less RBE for a few rounds, then regular afterwards	Reduces the RBE of early rounds slightly.	Heavy Bloon Armor
	Regrow Rush of Death Tightly spaced regrow bloons	Regrow Bloons as early as round 1 instead of round 3, and only the last wave of every round contains regrow bloons.	Rubber Repair
	Camo Craziness High % of camo bloons	Camo Bloons are significantly more common and can appear as early as round 1 instead of round 6.	Camo Modification Tech
	Sneaky Camo All bloons are non-camo except for a few rounds throughout	3 equally distributed rounds (or 4 if extra strong) contain all camo bloons. Camo Bloons cannot appear at all on unconverted rounds.	Camo Modification Tech
	Camo Regrow Pain Send as many camo regrow bloons as possible	Increases the odds of Camo Bloons, then converts all Camo Bloons to Camo Regrow Bloons.	Camo Modification Tech
	MOAB Push Sends a MOAB as early as possible	MOABs can start spawning one round earlier (up to four rounds earlier if extra strong, depending on difficulty). Rounds that can spawn MOABs use different generation mechanics, so on the affected rounds, Rainbow Bloons and Ceramic Bloons are more common.	MOABs
	ZOMG Zuprise Send a single ZOMG as a suprise on an earlier round	Adds one ZOMG to the start of the last round (second-to-last round if extra strong).	ZOMGs

Defending

When a player receives an attack, it is initiated as soon as the game is able to connect to the internet. Once the attack initiates, the player has 24 hours to defend it, otherwise it automatically ends in a loss for the player and a win for the opponent the next time the game connects to the internet. Attacks cannot be defended against without an internet connection.

Attacks occupy unclaimed tiles within range of the player's city. Attacks cannot occupy Volcano Terrain tiles, Cave Terrain tiles, Special Terrain tiles, or tiles containing a treasure chest. Attacks use the same tracks as their original tiles, but override their difficulty levels, modifiers, and rounds. When defending an attack, non-stop mode is forcibly enabled and each round begins immediately after all Bloons from the previous round have entered instead of after all Bloons have been popped first, similar to Apopalypse mode from Bloons TD 5. Unlike Apopalypse, end-of-round cash is still given.

Pacifist Mode

Pacifist Mode prevents the player from receiving attacks from other players. It can only be enabled if the player has not sent an attack in the last 72 hours, and it is automatically disabled if the player sends an attack when it is enabled. Additionally, in the Flash version only, Pacifist Mode cannot be enabled if the player has 1,000 or more Honor.

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