Rillaboom

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 is the same except its wooden drum became a full drum set. Four vines extend from its leafy hair and play the drums.

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.

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.

Evolution

It is the final evolution of Grookey, evolving from Thwackey starting at level 35.

Game info

Game locations

Pokédex entries

Stats

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

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

Rillaboom's Sword & Shield sprite

Rillaboom's Sword & Shield shiny sprite

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 Chimchar and its evolutions, 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 more around orangutans) gets the ability instead.

Origin

Rillaboom is based on a gorilla and a Taiko drummer, with its Gigantamax form more resembling a rock drummer kit. 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. It may also be a reference to the British rock band Gorillaz or the American rock band The Monkees. As it's a gorilla-like Pokémon in a Nintendo-owned game that plays wooden drums, Rillaboom may also, to some degree, be based on the character Donkey Kong, who, throughout the various games in his series (many of which were developed by British game developer Rare), is associated with bongo drums. As Grass-type starters tend to be based on prehistoric animals, Rillaboom may also be based on Gigantopithecus.

Etymology

Rillaboom is a combination of gorilla and boom (referring to a sound of a drum).

Gorirandā comes from "gorilla" and 乱打 (randa, battering).

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