Arena (Battles)

For the mechanic in Bloons TD Battles 2, see Arena (Battles 2).

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Arenas (also referred to as Battle Arenas) are a matchmaking system in the multiplatform version of Bloons TD Battles introduced in version 3.0. Each Arena represents a matchmaking room that players can enter by spending a certain amount of Medallions (unless they have a Free Entry), with higher-ranking Arenas costing more. Usually, the prize for winning is double the entry cost (represented by both players placing their Medallions in a pot, then the winner taking all), though some limited time Arenas had bonus Medallions for winning in older versions. All Arenas have their own pool of maps, with higher-tier Arenas generally favoring shorter maps. Instead of using Battle Energy, all Arenas have rulesets that either provide Power uses and tower rerolls for free, or disable them entirely.

There are two Arena rotations that change on a daily basis: one for Assault mode and one for Card Battle mode. Some Arenas are always available, while others appear on a rotating basis or are periodically replaced with Club Arenas.

Types of Arenas

Club Arenas

Club Arenas are variants of Arenas that have additional rules. They can have Speed Battle, Bananza, Random Trio (Random Cards for Card Battle Arenas), Mega Boosts, Play With Fire, Old School, or a combination of up to three rules. Entering a Club Arena requires either a daily free entry or having a Club Membership. Some maps are exclusive to Club Arenas.

Boss Arenas

Boss Arenas are Arenas based on the Boss Bloons from Bloons Monkey City that have Medallion costs and rewards on par with ZOMG Superdome. They only appear in the Assault rotation and only appear periodically. Additionally, rather than being active for the whole day, they alternate between being accessible and inaccessible in one-hour blocks. Each Boss Arena's map pool consists of only one map, which is exclusive to that Arena and a few other modes.

List of Arenas

Icon	Name	Entry cost	Medallions per win	Battle Score per win	Battle Score per loss
	Yellow Stadium	5	10	10	2
	Spring Meadow	5	10	10	2
	North Pole	5	10	10	2
	Haunted House	5	10	10	2
	Bloons Supermonkey 2	5	10	10	2
	Winter Wonderland	20	40	10	2
	White Wasteland	20	40	10	2
	Frankenbloon's Laboratory	20	40	10	2
	Chocolate Box	20	40	10	2
	Lead Dungeon	100	200	10	2
	Rainbow Ruins	500	1,000	12	3
	Ceramic Crucible	2,000	4,000	12	3
	MOAB Pit	10,000	20,000	15	4
	BFB Colosseum	25,000	50,000	20	5
	ZOMG Superdome	35,000	70,000	20	5
	Vortex Storm	35,000	70,000	20	5
	Dreadbloon Cave	35,000	70,000	20	5
	Bloonarius Swamp	35,000	70,000	20	5
	Blastapopoulos Inferno	35,000	70,000	20	5