Arena Leagues

Arena Leagues is the form of progression in Bloons TD Battles 2 introduced in the Version 4.0. It replaces the original arena system since Season 19, with existing players on Season 18 starting off the new system on the current arena they finished by that season.

In Arena Leagues, players no longer lose trophies, but instead are categorized into leagues from the player's currently allocated Battle Arena. For all arenas between Yellow Stadium to Hall of Masters, up to 30 players per league compete for maximum numbers of trophies to maintain their rankings in the arenas. At the end of each week, the top players rank up arenas; in contrast, the bottom players rank down arenas.

Mechanics

In order to join Arena Leagues, player must play at least one Ranked game. After the battle they will be assigned to the random league. Every league has 30 players of the respective arena and it refreshes each week. Players compete against eachother by earning trophies from Ranked Battles. Games are not restricted to players in the leaderboard.

• Winning awards 3 trophies
• 3+ win streak awards 1 extra trophy. Win streak can be resumed in the next league.
• Streakbreaker (winning against someone on 3+ win streak) bonus awards 1 trophy
• Losing:
  • On Lead Dungeon and below awards no trophy.
  • On Ceramic Crucible, MOAB Pit and BFB Colosseum incurs a 1 trophy penalty.
  • On ZOMG Superdome and Hall of Fame incurs 3 trophy penalty.

At the end of the league week, top players earn Monkey Money and progress to the higher league, while bottom players drop to the lower league. Each season has 4 arena league weeks. Players will not be demoted if they have not entered Arena Leagues, but they will be demoted if they entered Arena Leagues and ended it with 0 trophies.

The Hall of Masters players do not progress - instead their score is counted towards the elo in the global leaderboard.

• MOAB Pit and below: Top 10 players progress to the next arena, bottom 10 drop to the lower arena.
• BFB Colosseum: Top 5 players progress to ZOMG Superdome, bottom 10 players drop to MOAB Pit.
• ZOMG Superdome: Top 3 players progress to the Hall of Masters, bottom 10 players drop to BFB Colosseum.
• Hall of Masters: Bottom 10 players drop to ZOMG Superdome.

Upon reaching 10 win streak, player can choose Fast Track promotion. This immediately moves them to the next league, but they will not earn Monkey Money by doing that. If declined, then player has to reach 10 win streak again to get the offer again.

Red Bloon Camp does not use weekly arena leagues. Instead players will enter a continuous, rolling league that does not reset. They are promoted to Yellow Stadium and enter weekly leagues upon earning 30 trophies.

Version History

4.0.0

• Released, replacing previous ranking system

4.1.0

• Fast Track requirement changed: player now needs 10+ win streak instead of 50 trophies
• Fast Track is no longer limited to one player per league
• Fast Track offer can reappear to those who declined it

4.2.0

• Removed Round 30+ loss trophy reward
• Losing on Ceramic Crucible, MOAB Pit and BFB Colosseum will deduct 1 trophy, and losing on ZOMG Superdome and Hall of Masters will deduct 2 trophies.
  • Trophy count cannot go lower than 0
• Removed 20 trophy requirement for promotion.
• Hall of Masters players will not be automatically demoted if they didn't enter the league.

4.2.1

• Losing on ZOMG Superdome and Hall of Masters now deducts 3 trophies instead of 2
  • This change took effect starting from September 20th 2024 arena leagues

“	The feedback from the Arena Leagues survey showed that many players wanted Hall of Masters to be a more exclusive arena with a much higher skill threshold. We are increasing the trophy penalty in ZOMG and HoM so that a 50% win rate (excluding streak bonuses) would be the minimum to avoid auto demotion. We want to avoid increasing the penalty to 4 or more trophies as it would significantly reduce the number of players in the Hall of Masters and make it much harder to find a match. We’re monitoring the other arenas and may make further adjustments in the future.	”
	~ Ninja Kiwi

Quotes

“	A lot of the feedback we saw about fast track in its current form was that it felt quite grindy and just a race to 50 trophies. So, from 4.1, it’ll no longer be based on trophies. Instead, if you reach a win streak of 10+ games, you will then be given the option to fast track to the next arena and there will be no limit to the number of people per league who can be fast tracked. The hope here is that it’ll make fast tracking more skill-based!	”
	~ Ninja Kiwi's 4.0.2 patch notes

Gallery

Information about the Arena Leagues

Arena League in BFB Colosseum

Player is on a win streak as shown by a dart near their banner

All bonuses earned from a single Ranked game

Completing HoM League at 1st Place

Getting promoted to BFB Colosseum

Remaining in the MOAB Pit

Getting demoted from BFB Colosseum to MOAB Pit

Ranked Leagues tip

"League Ending Today" message, but currency particles covering "[...] league next week"

Notification of a player in your league surpassing you

Being the only player in the league

Promoting to Hall of Masters 1st place

"League Ending Today" message

Fast Track message

Arena League leaderboards if player enters during last two days (1 day left)

BFB Colosseum Arena Leagues leaderboard since Version 4.2

Bugs

Patched

Elo score appearing in BFB Colosseum

• [4.0] Some players were erroneously assigned to Red Bloon Camp after the 4.0 version update. Currently, if they have not played a game, they will be correctly assigned after relaunching the game.
• [4.0] Elo score change sometimes appeared to the players below the Hall of Masters.