Rounds
Round 9
Round 9 in BTD6: 30 Green Bloons, 90 RBE. What spawns, the cash it pays and how to handle the steady stream of greens.
Guide
Round 9 is a single group of 30 Green Bloons released over about 19 seconds. Greens have three layers and are faster than the first two bloon colours, so this is the first round made entirely of mid-speed bloons. There are no gaps, which tests sustained damage more than burst damage.
Bloons in round 9
- 30 × Green Bloon (0.0s–18.9s)
Total: 30 bloons worth 90 RBE. Popping everything pays $90, plus the $109 end-of-round bonus.
How to beat round 9
A hero and one upgraded tower handle 30 greens easily.
- Attack speed matters more than pierce here because the greens come in a steady line rather than in clumps.
- A Dart Monkey with a cheap middle-path upgrade or a Tack Shooter at a bend clears the line efficiently.
- If your defence is a single tower, place it near the middle of the track so it gets a long look at every green.
On higher difficulties, consider adding a second tower now to prepare for round 10, which is much longer.
Alternate Bloons Rounds
In ABR the same 30 greens are all Regrow Green Bloons. If a green is popped down to blue or red and then escapes your range, it grows back. Put your damage close together so each bloon is fully popped in one pass.
- 30 × Regrow Green Bloon (0.0s–18.9s)
ABR total: 30 bloons, 90 RBE.
Frequently asked questions
What is in round 9 BTD6?
Round 9 is 30 Green Bloons, 90 RBE in total.
Are ABR round 9 bloons regrow?
Yes, all 30 greens in ABR round 9 are Regrow Green Bloons.