Rillaboom
Gigantamax energy has caused Rillaboom's stump to grow into a drum set that resembles a forest.
How to Evolve Rillaboom in Cobblemon
View Full Evolution GuideRillaboom evolves from Thwackey. The Thwackey page contains the exact Cobblemon evolution requirements.
Base Stats & EV Yield
Generic Info
- Height
- 28m
- Weight
- 0kg
- Catch Rate
- 45/255Hard
- Base Friendship
- 50
- Experience Group
- medium_slow
- Base Experience
- 265
- Hitbox
- 1.6w x 2.3h - Fixed: No
- Status
- Implemented
Abilities
- #1
- overgrow
- #2
- grassysurgeHidden
Drops
Rillaboom can drop Stick and Miracle Seed. The table uses 3 drop rolls; percentages are per roll, not guaranteed drops. Quantity ranges show the possible item count for that entry.
Breeding
- Egg Groups
- Field, Grass
- Egg Cycles
- 20
- Gender Ratio
- 87.5% M / 12.5% F
Behavior
- Movement
- Avoids Water
- Yes
- Herd
- Max Size
- 7
- Tolerated Leaders
- RillaboomTier 1
- Combat
- Will Defend Self
- Yes
- Will Defend Owner
- Yes
- Will Flee
- No
- Resting
- Drowsy Chance
- 0.0333
- Rouse Chance
- 0.0042
Forms & Variants
Choose a Rillaboom form or feature-driven variant.
Active aspects
Where does Rillaboom spawn in Cobblemon?
The current Cobblemon spawn data does not list a natural spawn for Rillaboom (Gmax Form).
Habitat encounters
Rillaboom appears in 1 habitat. Open one to see its complete spawn pool, phases, and conditions.
What moves does Rillaboom learn?
Rillaboom has 121 listed moves: 19 level-up, 67 TM, 6 egg, 29 tutor.
As an Alpha
Full Alpha guideWhat Rillaboom becomes as a Cobblemon 1.8 Alpha
Size
≈ ×1.28 larger
Marks
Level vs your party
Guaranteed moves
Normal wild moveset plus two guaranteed TM moves (slots 3 & 4)
Drops if defeated
Base rewards scale with its level; its grass typing adds bonus gems & berries.
Base drops Tier 4
- Exp Candy L×119%
- Exp Candy Xl×125%
- Rare Candy×16%
- Health Candy×18%
- Mighty Candy×18%
- Tough Candy×18%
- Smart Candy×18%
- Courage Candy×18%
- Quick Candy×18%
Type drops
- Grass Gem×2–3
- Rindo Berry×1–2
