Thunderous Cave

Thunderous Cave entrance.

“	Hollowed out over time by the everlasting rain on the island, this cave runs below the entirety of Donar Island.	”
	~ Area Description

Thunderous Cave is a dungeon area located on Donar Island, full of Electric Type Coromon. Deeper areas of the cave become dark enough that it limits the player's visibility of the map and causes encounters to start off with the Twilight weather condition. Visibility in these areas can be increased by wearing the Worker Helm or activating the trait Bright Light.

Description

Thunderous cave has 4 floors, divided into 7 areas in total. Several trainers and items can be found here.

Checkpoint:	Fuse Room

BF1

A small area underneath the first floor of the cave can be accessed through a ladder on F0. It is shrouded in darkness and is the only spot in the demo version of the game where Lunarpup can be encountered.

F0

The starting floor of the cave that has a ladder on the right side leading to BF1 and the left side has a ladder leading to F1. It contains two Coromon spawning zones, South (A) and North (B).

F1

The second floor of Thunderous Cave. It has rock puzzles and contains several chests and hidden items. It's the only spot in the demo version of the game where Gauslime can be encountered.

F1 - Hidden cave 1

The second floor of Thuderous Cave actually hides a secret cave in which are present several items and gems (requires TREMOR module).

F1 - Hidden cave 2

The Hidden Cave conceal a second Hidden Cave!? Is that a CAVE-CEPTION!? Looking for gems and items, engulfed by darkness (requires TREMOR module).

F2

The third floor of Thunderous Cave leading to the Fuse Room. It contains two Coromon spawning zones, South (A) and North (B).

Fuse Room

This area is at the end of the cave. Where Thomas is stuck. the player has to overcharge the Fusebox with their Coromon to save him and gain access to the ladder on the right which will lead back to the first floor near the entrance.

Music Theme

This theme plays when the player is inside Thunderous Cave, the sound of of dripping water is also heard while it is playing. (For Mobile Users, click here)

Coromon Located Here

Coromon	Level	Rarity	Area	Double Battle	Triple Battle
Lumon	7-12	Common	BF1 - F0 - F1 - F2*A	F2*A	❌
Buzzlet	7-13	Common	BF1 - F0 - F2*B	❌	❌
Houndos	7-13	Common	BF1 - F1 - F2	F2	❌
Moffel	7-12	Common	F0 - F1 - F2	F0*B - F2	❌
Armado	7-12	Common	F0 - F1	❌	❌
Lunarpup	6-12	Common	BF1	❌	❌
Gauslime	7-11	Uncommon	F1	❌	❌
Acie	8-13	Uncommon	F2	❌	❌
Mooby	8-12	Rare	F2	❌	❌
Lumasect	39-45	Common	F1*HC*1 - F1*HC*2	❌	❌
Hountrion	37-50	Uncommon	F1*HC*1 - F1*HC*2	❌	❌
Dugterra	37-45	Common	F1*HC*1 - F1*HC*2	❌	❌
Armadon	38-45	Common	F1*HC*1 - F1*HC*2	❌	❌
Magnamire	40-43	Uncommon	F1*HC*1	❌	❌
Eclyptor	40-45	Common	F1*HC*2	❌	❌

Encounter Rates

Zone	Rates
Cave BF1	16.00% Buzzlet				16.00% Houndos		34.00% Lumon				34.00% Lunarpup
Cave F0*A	33.33% Buzzlet	16.67% Moffel		16.67% Armado			33.33% Lumon
Cave F0*B	16.00% Buzzlet		34.00% Moffel Moffel	16.00% Armado			34.00% Lumon
Cave F1		16.67% Moffel		16.67% Armado	33.33% Houndos		16.67% Lumon					16.67% Gauslime
Cave F2*A			16.00% Moffel Moffel		36.00% Houndos			16.00% Lumon Lumon	16.00% Acie	16.00% Mooby
Cave F2*B	36.00% Buzzlet		16.00% Moffel Moffel			16.00% Houndos Houndos			16.00% Acie	16.00% Mooby
Hidden cave F1*HC*1													20.00% Lumasect	20.00% Hountrion	20.00% Dugterra	20.00% Armadon	20.00% Magnamire
Hidden cave F1*HC*2													20.00% Lumasect	20.00% Hountrion	20.00% Dugterra	20.00% Armadon		20.00% Eclyptor

Rates for fruits held during battles

Zone	Rates for fruits held during battles
Cave BF1	0.00% Buzzlet				6.25% Houndos		2.94% Lumon				0.00% Lunarpup
Cave F0*A	4.00% Buzzlet	0.00% Moffel		4.00% Armado			2.00% Lumon
Cave F0*B	0.00% Buzzlet		0.00% Moffel Moffel	0.00% Armado			2.94% Lumon
Cave F1		0.00% Moffel		0.00% Armado	4.00% Houndos		0.00% Lumon					4.00% Gauslime
Cave F2*A			0.00% Moffel Moffel		2.78% Houndos			6.25% Lumon Lumon	0.00% Acie	0.00% Mooby
Cave F2*B	0.00% Buzzlet		0.00% Moffel Moffel			6.25% Houndos Houndos			0.00% Acie	6.25% Mooby
Hidden cave F1*HC*1													5.00% Lumasect	10.00% Hountrion	0.00% Dugterra	5.00% Armadon	10.00% Magnamire
Hidden cave F1*HC*2													5.00% Lumasect	5.00% Hountrion	0.00% Dugterra	5.00% Armadon		10.00% Eclyptor

Items

Area	Item	Location
BF1	Skill Flash 22 x1	Chest south of stairs
	HP Cake (S) x1	Rock along north-most wall
	HP Cake (S) x2	Chest near ledge
	SP Cake (S) x2
	Stinky Scent x1
F0	HP Cake (S) x1	Chest within sand in the left dead-end
	Ber Fruit x1
	Potent Scent x1	Pillar on top path from dead-end chest
	HP Cake (S) x1	Chest in south-center area
	LuxRecall x1	Chest in north-east corner
	Gold x350	Pillar along east-most wall
	HP Cake (M) x1	Chest behind pillars in the eastern area
	Heal Spinner x1	Just above the north-east side ladder that leads to BF1
	Combi Cake (M) x2	Chest between ledges in the eastern hallway
	Static Spinner x2	Chest just south of the north-west side ladder leading to F1
	Combi Cake (M) x2	Chest next to ladder coming from the Fuse Room in the western-most area
	Fusebox Costume	Golden Chest south of ladder coming from the Fuse Room
	Fusebox Costume (Potent)
	Fusebox Costume (Perfect)
F1	HP Cake (S) x1	Pillar right of the first pushable rock
	Combi Cake (S) x1	Chest along path on the westernmost side
	HP Cake (S) x1	Chest west side, 3 levels of stairs up
	SP Cake (S) x1
	Spinner x1
	Phoenix Shard x1	Stalagmite near the sand, center of the map
	Static Spinner x2	Golden Chest in north-east area behind pushable rocks
	HP Cake (S) x2
	Cuco Fruit x2
	LuxRecall x1	Chest within sand in center area
	Potent Scent x1	Pillar between sandy areas in the center of the map
	Fear Scent x1	Left corner of south-center area blocked by a rock
	Stinky Scent x1	Golden chest in south-center area blocked by a rock
	Combi Cake (S) x2
	Ber Fruit x2
	HP Cake (S) x1	Chest between ledges in south-east area
	Combi Cake (M) x1	Chest in left corner of pillar maze
	Skill Flash 4 x1	Chest in right corner of pillar maze blocked by a rock
	SP Cake (S) x1	Chest near the exit ladder to F2
F2	Phoenix Shard x1	Chest just north of entrance ladder
	Canul Fruit x1	Pillar in south-center
	Juba Fruit x2	Chest within sand, south area
	Cuco Fruit x2
	Stinky Scent x1	Chest in center
	Gold x350	Bones in sand
	Spinner x1	Pillar in north center
	Ground Spinner x1	Rock just left of exit hallway
Fuse Room	HP Cake (S) x1	Chest top-left room
	Fear Scent x1	Chest top-right room
	HP Cake (M) x1	Chest near exit ladder
	SP Cake (M) x1
Hidden Cave 1
	Escape Flash x1	Silver chest left side of the room
	Devolve Pill x1	Silver chest top-right side of the room
	Platinum Spinner x1	Hidden in the stalagmite north side of the room
	Fari Fruit x2	Silver chest bottom-right of the room
	Zum Fruit x2
Hidden Cave 2
	Level Cake x1	Hidden in the pillar to the left of the golden chest
	XP Chip x2	Golden chest in the centre of the room
	Potent Scent x2
	Amethio x1

Hidden Gems/Items location

Location	Item	Sell price
Thunderous Cave BF1
	Green Gem (s)	240 / 180
	Green Gem (l)	4800 / 3600
	Red Gem (l)	6400 / 4800
Thunderous Cave F0
	Blue Gem (s)	160 / 120
	Blue Gem (s)	160 / 120
	Blue Gem (s)	160 / 120
	Blue Gem (m)	800 / 600
	Green Gem (s)	240 / 180
	Green Gem (s)	240 / 180
	Green Gem (l)	4800 / 3600
	Red Gem (s)	320 / 240
	Red Gem (l)	6400 / 4800
Thunderous Cave F1
	Blue Gem (s)	160 / 120
	Blue Gem (s)	160 / 120
	Blue Gem (l)	3200 / 2400
	Green Gem (s)	240 / 180
	Green Gem (s)	240 / 180
	Green Gem (m)	1200 / 900
	Green Gem (l)	4800 / 3600
	Red Gem (s)	320 / 240
Thunderous Cave F2
	Blue Gem (s)	160 / 120
	Blue Gem (s)	160 / 120
	Red Gem (s)	320 / 240
	Red Gem (m)	1600 / 1200
Fuse Room
	Blue Gem (s)	160 / 120
	Green Gem (l)	4800 / 3600
	Red Gem (s)	320 / 240
Hidden Cave 1
	Green Gem (m)	1200 / 900
	Red Gem (s)	320 / 240
	Red Gem (s)	1600 / 1200
Hidden Cave 2
	Blue Gem (m)	800 / 600
	Blue Gem (l)	3200 / 2400
	Green Gem (l)	4800 / 3600

Trainers

F0

Shane Thunderous Cave F0 Reward:  376 Armado   L11 Normal Juba Fruit Scratch Cut Physical Concentrate Normal Status Toughen Up Normal Status - Fiddly   L12 Water No held item Scratch Cut Physical Fury Pincer Water Physical Toughen Up Normal Status - Houndos   L13 Electric No held item Fast Strike Normal Physical Mighty Roar Normal Status Volt Lick Electric Status Chomp Foul Physical

Owain Thunderous Cave F0 Reward:  201 Sanscale   L12 Sand No held item Chomp Foul Physical Toughen Up Normal Status Pocket Sand Sand Status Mud Ball Sand Physical Sanscale   L12 Sand No held item Chomp Foul Physical Toughen Up Normal Status Pocket Sand Sand Status Mud Ball Sand Physical

Skye Thunderous Cave F0 Reward:  376 Droople   L10 Ghost No held item Chomp Foul Physical Sticky Saliva Normal Status Feelers Normal Status - Armado   L11 Normal No held item Scratch Cut Physical Concentrate Normal Status Toughen Up Normal Status - Fiddly   L12 Water No held item Scratch Cut Physical Fury Pincer Water Physical Toughen Up Normal Status - Houndos   L13 Electric No held item Fast Strike Normal Physical Mighty Roar Normal Status Volt Lick Electric Status Chomp Foul Physical

F1

Myles Thunderous Cave F1 Reward:  240 Mino   L12 Fire No held item Tail Spin Normal Physical Cute Pose Normal Status Rage Normal Status Piercing Horns Fire Physical Slitherpin   L14 Normal No held item Poison Sting Poison Physical Drain Magic Special Toughen Up Normal Status Constrict Normal Status

Neve Thunderous Cave F1 Reward:  272 Gauslime   L13 Electric No held item Power Slap Electric Physical Toughen Up Normal Status Disable Magic Status Electric Pound Electric Physical Otogy   L14 Ghost No held item Voodoo Magic Special Frantic Mask Ghost Status Shadewalker Ghost Physical -

Ronald Thunderous Cave F1 Reward:  218 Armado   L13 Normal No held item Scratch Cut Physical Concentrate Normal Status Toughen Up Normal Status Double Slash Cut Physical Fiddly   L13 Water No held item Scratch Cut Physical Fury Pincer Water Physical Toughen Up Normal Status -

Tamara Thunderous Cave F1 Reward:  249 Taddle   L13 Water No held item Slam Normal Physical Ignore Pain Normal Status Slush Ice Special - Fiddly   L14 Water No held item Scratch Cut Physical Fury Pincer Water Physical Toughen Up Normal Status -

F2

Esme Thunderous Cave F2 Reward:  423 Otogy   L12 Ghost No held item Voodoo Magic Special Frantic Mask Ghost Status Shadewalker Ghost Physical - Skarbone   L12 Sand No held item Epiphany Normal Status Sandman Normal Status Chomp Foul Physical - Houndos   L12 Electric No held item Chomp Foul Physical Mighty Roar Normal Status Fast Strike Normal Physical Volt Lick Electric Status

Oskar Thunderous Cave F2 Reward:  260 Sanscale   L15 Sand No held item Chomp Foul Physical Toughen Up Normal Status Mud Ball Sand Physical Pocket Sand Sand Status Armadil   L16 Normal No held item Scratch Cut Physical Concentrate Normal Status Toughen Up Normal Status Double Slash Cut Physical

Loweri Thunderous Cave F2 Reward:  267 Fiddly   L14 Water No held item Scratch Cut Physical Fury Pincer Water Physical Toughen Up Normal Status - Houndos   L15 Electric No held item Fast Strike Normal Physical Mighty Roar Normal Status Volt Lick Electric Status Chomp Foul Physical

Layout

• 

  BF1 Item & Zone Layout
• 

  F0 Item & Zone Layout
• 

  F1 Item & Zone Layout
• 

  F2 Item & Zone Layout
• 

  Fuse Room Item Layout

Gallery

• 

  Battle Screen
• 

  Banner
• 

  F0 in earlier versions
• 

  F2 in earlier versions
• 

  Hidden cave entrance in F1, requires TREMOR module