This agent continuously generates spikes along the track until the map is completed or failed. It grows 10 thorns and generates 10 thorns per round. In case all the thorns it generates gets destroyed before the round is over, it will still remain on the map but won't be able to generate new thorns until the next round. Lead Bloons is the bane of this unit since its thorns can by destroyed by Lead Bloons easily as it moves around the track.
Cost: $50
Pro: Use 50 times to transform to a Bloonberry Bush Pro
Bloonberry Bush Pro Effects:
The Bloonberry Bush can now spawn creepers that appear along the track every three rounds. Each individual creepers can have up to 15 thorns.