Regen Farming

Regen farming is a method of gaining money, but is very risky. It is based on the regen bloons and is only availuble on BTD5, BTD5 Deluxe and BTD5 IOS. It is based on the fact that if a Regen Bloon gaines a layer it doesent give any money when poped but i gives 2 bloons they will give you money when poped. Ex: a rainbow regen bloon is poped into two zebras. After some time the zeebras will become rainbows and with that they will multiply.

Method
If you use the corosive glue the bloons will pop but short after that they will grow a new layer. Another method is to use Sumon Whirlwind the bloons will pop some layers and the tornado will bring them to the entrance and by the time the reach the Air Disciple the will multiply. You can also farm with arctic wind and ninja monkey with Distraction. The arctic wind will give the time for the bloons to multyply and the ninja will pop them and send them back to the Arctic Wind. It is bad to use Regen Farming with Ceramic Bloons the bloons will take 10 hits to be destroied and they will emidiately gain the 10 HP of a Ceremic Bloon. It is also dangeoruos to do it if you dont have a strong backup tower to pop them if they get to many.