Version 4.5 is the first major update to Bloons TD Battles 2 and Bloons TD Battles 2+ of 2025. It introduced the community-created map Neo Highway. It had 2 OTA updates which fixed bugs and set up new Store bundles.
We are increasing the cost of the Triple Darts upgrade and moving some of the top path’s cost into the lower upgrades to make dart monkey hoards more expensive. — Update notes
We are slightly nerfing the Bloon Solver’s attack speed to reduce the number of times it’s able to reapply its glue after Scientist Gwen has burned it off. — Update notes
The Monkey Bank benefited a little too much from the introduction of Quality Soil. These changes are intended to keep the strength of the Monkey Bank when combined with the top path while nerfing the bottom crosspath. — Update notes
By increasing the damage and reducing the attack rate of Scientist Gwedolin’s cocktail, we can reduce the amount of damage it does when combined with Glue Gunner without nerfing the attack as a whole. [sic] — Update notes
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Levels
Changes
3+
Chemical Cocktail: damage tick rate reduced ― 0.24s → 0.36s
3–13
Chemical Cocktail: damage per tick increased ― 2 → 3
14+
Chemical Cocktail: damage per tick increased ― 5 → 6
Poor Benjamin has had some of his uniqueness stolen by Bonnie and Beetienne in recent updates leaving him without a solid niche. To help find him a new one, we are strengthening his synergy with Banana Farms and replacing his life gain upgrade with a brand new effect: Boost Hack. — Update notes
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Levels
Changes
All
Benjamin is now buffed by Banana Central
3+
Biohack: affects 2 more towers at all levels
Biohack: affected towers deal +1 damage at all levels
5+
Bank Hack: now applies to Marketplaces
6+
Cyber Security replaced with Boost Hack
14+
Effect changed to Boost Hack granting one additional use of each boost
DJ Ben has been given even more changes to distinguish him from the other heroes, including Ben. Every DJ needs a crowd so DJ Ben’s income is now based on the number of monkeys you can fit into his radius. He’s weaker than regular Ben by himself, but stronger if you can max out his crowd. We’ve also swapped his synergy with Farms for a synergy with alternative income monkeys like Sniper, Heli Pilot, and Engineer. — Update notes
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Levels
Changes
All
Range increased by 5
1
Cash generated per round reduced ― $75 → $50
Now generates +$10 per round per tower in range (up to +$100)
2-4
Cash generated per round reduced ― $112 → $75
Now generates +$15 per round per tower in range (up to +$150)
3-12
Good Vibes effect changed: for each different type of tower in range (excluding Banana Farm and Monkey Village), gives the 3 furthest away towers of that type +2 damage for 6 seconds, then require a 2s cooldown
5-8
Bank Hack replaced with Side Hustle (increases cash generated by all towers except Banana Farms and Monkey Villages by 6%)
5-7
Cash generated per round reduced ― $187 → $125
Now generates +$25 per round per tower in range (up to +$250)
6-13
Cyber Security replaced with Encore (reduces all Activated Ability cooldowns by 5%)
8-10
Cash generated per round reduced ― $300 → $200
Now generates +$40 per round per tower in range (up to +$400)
9+
Now increases Side Hustle buff to 9%
11-14
Cash generated per round reduced ― $600 → $400
Now generates +$80 per round per tower in range (up to +$800)
13+
Good Vibes: now gives +3 damage and lasts for 8 seconds without affecting more towers
14+
Now reduces Activated Ability cooldowns by 15%
15-16
Cash generated per round reduced ― $1,500 → $1,000
Now generates +$200 per round per tower in range (up to +$2,000)
17+
Cash generated per round reduced ― $3,000 → $2,000
Now generates +$400 per round per tower in range (up to +$4,000)
19+
Good Vibes: now affects the 4 furthest away towers of each type in range
A lot of heroes and towers have more powerful synergies now than they used to. In order to keep games aggressive and the bloons dangerous, we are increasing the potency of bloon boosts. — Update notes
This Over the Air update was released in tandem with the 4.5 update, as a way to fix last minute reported bugs. The patch notes are transcluded from the release patch notes that were not in the prior update teaser notes.
Time to hit the road on an all new map: Neo Highway! Designed by u/G00dbot as the winning entry of the Community Map Competition, Neo Highway is a fast paced and challenging test of your skill. Placement areas are hard to come by when racing down a highway and the speed of the Bloons changes as they weave in and out of traffic. Put the pedal to the metal and jump into a Neo Highway match now!
Speed modifier increased ― +25% → +40%
Coming soon image