Bloons TD Battles 2 gives players a lot of freedom in what towers they bring into battle, and their upgrades are often a key factor in what makes them work. Unfortunately, unlocking the upgrades takes quite a lot of time due to the slow XP progression of the game. To make matters worse, players can only acquire XP for a tower by using it, so players will have to struggle with a basic tower for many matches before getting the important upgrades.
Not every tower is created equally, however; while patches aim to fix the most obvious imbalances, one tower is always going to be better than another for a certain purpose. Because of this, players should prioritize which towers and upgrades they're unlocking so that they can climb the ladder without being held down by low-tier towers. This isn't to say that players can't make every tower work, but it will become harder and harder to gain trophies if players are using suboptimal towers or upgrades.
Related: The Best Towers to Use in Theater Mechanicus in Genshin Impact
The best way to grind XP on towers in Bloons TD is to create a strong 2-tower combo and throw in a third tower that will be getting XP. Towers gain XP based on how much money is spent on them relative to other towers and the round the game ends on, so with a 2-tower combo, players can defend the bloons while laying down several weak towers towards the end. An example of a string 2-tower combo would be Tack Shooter + Monkey Village; while a third tower would help greatly, Tack Shooters can defend most early game rounds and Monkey Villages will let the Tack Shooters hit anything they normally couldn't, such as camo bloons.
Players have their own choices for what towers they like in Bloons TD, but since the towers
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