BTD6 A Simple Way to clear Half-Cash Mode on Beginner Map
So, for Half-Cash Mode, it's not the most difficult thing to clear, but it is pretty annoying to deal with the money restraint. You have three methods to deal with it: either use a power-up and get double cash, use Insta-Monkeys, or just beat it normally. This strategy that I'm presenting is the one that I used to beat them.
I like this strategy because this one is cheap, and since it's pretty easy to set up, you can't mess it up luckily. So hopefully this is helpful, but just know that this works mainly on beginner maps and some intermediate maps.
P.S. If you are struggling with the MOAB on round 40, then I would recommend not getting a 4-0-2 boomerang monkey, just get it to 3-0-2 and get the 2-0-4 cannon. Hopefully, that helps!