Biology
Physiology
Rillaboom is a large, bipedal Pokémon that resembles a gorilla. It has dark brown fur, an orange muzzle, leafy "hair," and a "belt" made of leaves. Its body is mostly dark brown with gray markings on its chest, hands, shoulders, and feet. Its hands and feet are a light gray-brown, with its wrists sporting green leaf-like protrusions. It carries two drumsticks and a wooden drum that it hides in its hair.
Its gigantamax form retains its upper body,but it is now sitting on the Center of a drum kit made of wood. 4 leafy arms wielding drumsticks extend from its hair.
When undergoing Gigantamax, Rillaboom’s tree-stump drum grows rapidly— to the point that it now resembles a small forest on its own. Gigantamax Rillaboom merges with the forest of drums and becomes even more powerful. It can control its sticks as if they were its own limbs, and it demonstrates transcendental drumming techniques.
Behavior
Rillaboom has a gentle nature and won’t involve itself in trivial fights. However, it is extremely sensitive to any actions that could risk the harmony around it, so it keeps such actions strictly in check. Rillaboom has a strong sense of solidarity with others, and it will fight ferociously when its allies are in trouble.
Gigantamax Rillaboom focuses completely on playing its drums, compelled by the power welling up inside it. The sound can reach across oceans and be heard by those living in other regions. It’s said that those who hear the beat will begin to dance uncontrollably, overwhelmed by a rhythm that surges up from inside them.
Natural abilities
In battle, Rillaboom unleashes powerful sound waves with its drum and throws opponents about by controlling the roots of its stump. The skills it honed while it was a Thwackey are put on full display.
Evolution
It is the final evolution of Grookey, evolving from Thwackey starting at level 35.
Game info
Game locations
| Locations | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Version(s) | Area(s) | Rarity | |||||||
| Sword and Shield | None | Evolve Thwackey | |||||||
Pokédex entries
- Sword
By drumming, it taps into the power of its special tree stump. The roots of the stump follow its direction in battle.
- Shield
The one with the best drumming techniques becomes the boss of the troop. It has a gentle disposition and values harmony among its group.
Stats
| Base Stats | |
| HP
| |
| Atk
| |
| Def
| |
| Sp. Atk
| |
| Sp. Def
| |
| Speed
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| Total
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Learnset
Leveling
| Generation VIII | ||||||
| Level | Move | Type | Category | Power | Accuracy | PP |
| Evo | Drum Beating | 
| Physical | 80 | 100% | 10 |
| 1 | Drum Beating |
| Physical | 80 | 100% | 10 |
| 1 | Double Hit | 
| Physical | 35 | 90% | 10 |
| 1 | Grassy Terrain |
| Status | — | 100% | 10 |
| 1 | Noble Roar |
| Status | — | 100% | 30 |
| 1 | Scratch |
| Physical | 40 | 100% | 35 |
| 1 | Growl |
| Status | — | 100% | 40 |
| 1 | Branch Poke |
| Physical | 40 | 100% | 40 |
| 1 | Taunt | 
| Physical | — | 100% | 20 |
| 12 | Razor Leaf |
| Physical | 55 | 100% | 25 |
| 19 | Screech |
| Status | — | 85% | 40 |
| 24 | Knock Off |
| Physical | 65 | 100% | 20 |
| 30 | Slam |
| Physical | 80 | 75% | 20 |
| 38 | Uproar |
| Special | 90 | 100% | 10 |
| 46 | Wood Hammer |
| Physical | 120 | 100% | 15 |
| 54 | Endeavor |
| Physical | — | 100% | 5 |
| 62 | Boomburst |
| Special | 140 | 100% | 10 |
| Bold indicates that this Pokémon receives STAB from this move. Italic indicates that an evolved or alternate form of this Pokémon receives STAB from this move. | ||||||
By TM
| Generation VIII | ||||||
| Machine | Move | Type | Category | Power | Accuracy | PP |
| TM00 | Mega Punch |
| Physical | 80 | 85% | 20 |
| TM01 | Mega Kick |
| Physical | 120 | 75% | 5 |
| TM08 | Hyper Beam |
| Special | 150 | 90% | 5 |
| TM09 | Giga Impact |
| Physical | 150 | 90% | 5 |
| TM10 | Magical Leaf |
| Special | 60 | 100% | 20 |
| TM11 | Solar Beam |
| Special | 120 | 100% | 10 |
| TM12 | Solar Blade |
| Physical | 125 | 100% | 10 |
| TM16 | Screech |
| Status | — | 85% | 40 |
| TM21 | Rest | 
| Status | — | 100% | 10 |
| TM24 | Snore |
| Special | 50 | 100% | 15 |
| TM25 | Protect |
| Status | — | 100% | 10 |
| TM26 | Scary Face |
| Status | — | 100% | 10 |
| TM28 | Giga Drain |
| Special | 75 | 100% | 10 |
| TM31 | Attract |
| Status | — | 100% | 15 |
| TM34 | Sunny Day | 
| Status | — | 100% | 5 |
| TM39 | Facade |
| Physical | 70 | 100% | 20 |
| TM40 | Swift |
| Special | 60 | 100% | 20 |
| TM43 | Brick Break | 
| Physical | 75 | 100% | 15 |
| TM50 | Bullet Seed |
| Physical | 25 | 100% | 30 |
| TM53 | Mud Shot | 
| Special | 55 | 95% | 15 |
| TM56 | U-turn | 
| Physical | 70 | 100% | 20 |
| TM58 | Assurance |
| Physical | 60 | 100% | 10 |
| TM59 | Fling |
| Physical | ? | 100% | 10 |
| TM63 | Drain Punch |
| Physical | 75 | 100% | 10 |
| TM76 | Round |
| Special | 60 | 100% | 15 |
| TM78 | Acrobatics | 
| Physical | 55 | 100% | 15 |
| TM81 | Bulldoze |
| Physical | 60 | 100% | 20 |
| TM88 | Grassy Terrain |
| Status | — | 100% | 10 |
| TM97 | Brutal Swing |
| Physical | 60 | 100% | 20 |
| TM98 | Stomping Tantrum |
| Physical | 75 | 100% | 10 |
| Bold indicates that this Pokémon receives STAB from this move. Italic indicates that an evolved or alternate form of this Pokémon receives STAB from this move. | ||||||
By TR
| Generation VIII | ||||||
| Machine | Move | Type | Category | Power | Accuracy | PP |
| TR00 | Swords Dance |
| Status | — | 100% | 20 |
| TR01 | Body Slam |
| Physical | 85 | 100% | 15 |
| TR07 | Low Kick |
| Physical | ? | 100% | 20 |
| TR10 | Earthquake |
| Physical | 100 | 100% | 10 |
| TR13 | Focus Energy |
| Status | — | 100% | 30 |
| TR20 | Substitute |
| Status | — | 100% | 10 |
| TR26 | Endure |
| Status | — | 100% | 10 |
| TR27 | Sleep Talk |
| Status | — | 100% | 10 |
| TR35 | Uproar |
| Special | 90 | 100% | 10 |
| TR37 | Taunt |
| Status | — | 100% | 20 |
| TR39 | Superpower |
| Physical | 120 | 100% | 5 |
| TR42 | Hyper Voice |
| Special | 90 | 100% | 10 |
| TR48 | Bulk Up |
| Status | — | 100% | 20 |
| TR64 | Focus Blast |
| Special | 120 | 70% | 5 |
| TR65 | Energy Ball |
| Special | 90 | 100% | 10 |
| TR67 | Earth Power |
| Special | 90 | 100% | 10 |
| TR71 | Leaf Storm |
| Special | 130 | 90% | 5 |
| TR77 | Grass Knot |
| Special | ? | 100% | 20 |
| TR85 | Work Up |
| Status | — | 100% | 30 |
| TR93 | Darkest Lariat |
| Physical | 85 | 100% | 10 |
| TR94 | High Horsepower |
| Physical | 95 | 95% | 10 |
| TR99 | Body Press |
| Physical | 80 | 100% | 10 |
| Bold indicates that this Pokémon receives STAB from this move. Italic indicates that an evolved or alternate form of this Pokémon receives STAB from this move. | ||||||
By breeding
| To see the Egg Moves that Rillaboom can learn, refer to Grookey. |
|---|
By tutoring
| Generation VIII | ||||||
| Games | Move | Type | Category | Power | Accuracy | PP |
| SWSH | Frenzy Plant |
| Special | 150 | 90% | 5 |
| SWSH | Grass Pledge |
| Special | 80 | 100% | 10 |
| Bold indicates that this Pokémon receives STAB from this move. Italic indicates that an evolved or alternate form of this Pokémon receives STAB from this move. | ||||||
Sprites
Trivia
- Rillaboom is the first fully evolved Grass-type Starter Pokémon that is unable to learn Synthesis by any means. It is also unable to learn Belly Drum (despite being based off a gorilla and carrying around a drum) and Gunk Shot, despite many other ape-like Pokémon (including Infernape, Monferno, and Chimchar, another ape-like Starter line) being able to do so.
- Adding on to this, Rillaboom is also unable to learn any moves that counter Flying-types, not even Thunder Punch or Stone Edge (both of which Infernape's line could learn).
- Despite being based on a gorilla, Rillaboom doesn't get Gorilla Tactics as its Hidden Ability (which would help with its shallow move pool). Galarian Darmanitan (a Pokémon based off an orangutan) gets the ability instead.
- Rillaboom is the only grass type starter final evolution that is not based on any extinct animal.
Origin
Rillaboom is based on a gorilla and a drummer. The fact that Rillaboom is a drummer is a reference to how real-world gorillas beat their chests when they're angry or being territorial.
The way it is designed is also a joke to a Cadbury ad featuring a drumming gorilla.
Its Gigantamax form may also take inspiration from a drum kit.
Etymology
Rillaboom is a combination of gorilla and boom (referring to a sound of a drum).
Gallery
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| Other Pokémon: Kanto • Johto • Hoenn • Sinnoh • Unova • Kalos • Alola |
| Evolutionary Line | |
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