BTD6 bloon system
Bloon layers, properties, and MOAB-class threats
Use this visual reference to see the full standard bloon family before choosing a counter plan.
Bloon layers
The normal layer chain, plus special layers that test damage type and cleanup.

Red Bloon
The first layer in the normal bloon chain.
- Appears
- Standard first: R1
- Checks
- Base layer

Blue Bloon
One extra layer over red.
- Appears
- Early rounds
- Checks
- Contains red

Green Bloon
A faster early layer.
- Appears
- Early rounds
- Checks
- Contains blue

Yellow Bloon
Speed starts mattering more.
- Appears
- Early rounds
- Checks
- Contains green, Fast

Pink Bloon
Fast leaks punish slow projectile coverage.
- Appears
- Early rounds
- Checks
- Contains yellow, Very fast

Black Bloon
Bomb-only starts can fail here.
- Appears
- Early-mid rounds
- Checks
- Explosive immunity, Splits into pinks

White Bloon
Ice-only control does not solve it.
- Appears
- Early-mid rounds
- Checks
- Freeze immunity, Splits into pinks

Purple Bloon
Magic, fire, and plasma-heavy builds need backup damage.
- Appears
- Standard first: R25
- Checks
- Energy immunity, Fire immunity, Plasma immunity

Lead Bloon
You need lead-popping damage, not just more sharp damage.
- Appears
- Standard first: R28
- Checks
- Lead layer, Sharp attacks fail

Zebra Bloon
Explosive and freeze restrictions can both matter.
- Appears
- Mid rounds
- Checks
- Black properties, White properties

Rainbow Bloon
Grouped rainbows test pierce and cleanup.
- Appears
- Mid rounds
- Checks
- Dense layered bloon

Ceramic Bloon
You need enough burst or cleanup after the shell breaks.
- Appears
- Standard first: R38
- Checks
- High outer layer, Many children
Properties and modifiers
Extra rules that can appear on top of other bloons.

Camo Bloon
A tower that cannot see camo ignores it.
- Appears
- Standard first: R24
- Checks
- Needs camo detection

Regrow Bloon
Partial damage can become a regrow farm if cleanup is weak.
- Appears
- Mid rounds
- Checks
- Can rebuild layers

Fortified Bloon
Fortified layers need more damage than their normal versions.
- Appears
- Mid-late rounds
- Checks
- Extra health
MOAB-class threats
Blimps that shift the problem from simple popping to health, speed, and control.

MOAB
The first major blimp check.
- Appears
- Standard first: R40
- Checks
- MOAB-class, Spawns ceramics

BFB
Sustained MOAB damage starts to matter.
- Appears
- Standard first: R60
- Checks
- MOAB-class, Spawns MOABs

ZOMG
Slow and steady damage often needs control support.
- Appears
- Standard first: R80
- Checks
- MOAB-class, Very high health

DDT
Partial camo or lead answers often fail.
- Appears
- Standard first: R90
- Checks
- MOAB-class, Camo, Lead, Black, Very fast

BAD
Raw damage matters more than most slow or stun plans.
- Appears
- Standard first: R100
- Checks
- MOAB-class, Boss-like health, Control resistant
What does the BTD6 Bloon Counter Checker solve?
Find the missing counter. The BTD6 Bloon Counter Checker helps players identify why a bloon is leaking and which counter type is missing.
Match the mechanic. The checker separates leaks into targeting, damage type, speed, support, and MOAB-class pressure. Camo usually means the tower cannot see the target. Lead and purple are damage-type checks. Camo lead and DDTs combine multiple checks, so one uncovered property can still break a strong-looking setup.
Use it as a quick review. Compare cheap counters, reliable upgrades, support options, common mistakes, and key rounds before another run leaks the same way.
How to use it
- Select the bloon or property combination that leaked.
- Check whether the problem is targeting, damage type, speed, or support.
- Add one cheap answer first, then upgrade into a reliable answer if the wave repeats.
Sources
Sources below support the game availability link, mechanics references, and beginner counter notes used on this page.