Area Zero Underdepths

Area Zero Underdepths ゼロの大空洞 Great Zero Hollow "Wild Missingno. appeared!"
Map description:	{{{mapdesc}}}
Location:	Great Crater of Paldea Beneath Area Zero
Region:	Paldea
Generations:	IX
Location of Area Zero Underdepths in Paldea.
Pokémon world locations

The Area Zero Underdepths (Japanese: ゼロの大空洞 Great Zero Hollow) is an area located within the Great Crater of Paldea at the center of the Paldea region, but even deeper than Area Zero. It was formed two million years ago by seismic shifts and cave-ins.

In the core series games

History

A sketch of Stellar Form Terapagos

Background

The Area Zero Underdepths was formed two million years ago by the same seismic shifts that caused Terapagos to go extinct. At some point, numerous cave-ins also took place in the underdepths, resulting from tectonic activity and erosion caused by rainwater or groundwater.

200 years ago, during the first Area Zero expedition, the historian Heath strayed from his team and somehow ended up in the underdepths, where he encountered the last living Terapagos. He coined Terapagos's name and even theorized that it could be the origin of the crystallization phenomenon. When he returned to the surface, he wrote about their encounter in the Scarlet Book^S/Violet Book^V.

Pokémon Scarlet and Violet

The Indigo Disk

After gaining the permission from Paldea's Pokémon League to go into a new expedition to Area Zero, Briar invites the player, Carmine, and Kieran to serve as her protectors. Using Geeta's Indigo Disk, the four gained access to the elevator of Zero Lab, allowing them to go down into Area Zero Underdepths to find Terapagos.

Geography

The Area Zero Underdepths is a large cavern, roughly 3,300 feet (1 kilometer) below the surface, located beneath Area Zero. It is only accessible via the elevator in Professor Sada^S/Professor Turo^V's Zero Lab and only unlocked by using the Indigo Disk.

From the composition of the rock, the underdepths likely formed approximately 2 million years ago, predating even the formation of the Great Crater of Paldea. It experienced numerous cave-ins in the past, likely due to erosion and tectonic activity, but has remained stable since the last major cave-in. There are also indications that many objects or creatures filled the space prior to the current cavern's formation.

The Area Zero Underdepths consist of several large chambers connected by tunnels. It is filled with large Terastal crystals, similar to those found at the bottom of Area Zero. These crystals increase with depth until the deepest tunnel is made from solid crystal. Also near the bottom of the Underdepths is a subterranean lake. On an island in this lake is a large tree, seemingly covered in or made from crystal.

Several Pokémon species also inhabit the Underdepths, primarily Pokémon with an association with crystals. Prior to certain seismic shifts, Terapagos supposedly lived there before becoming nearly extinct.

Places of interest

Tera crystal clusters

There are several clusters of Tera crystals blocking paths all over the Area Zero Underdepths. These crystals are theorized to be guardians "watching" over the hidden treasure of Area Zero. According to Briar, they're likely a manifestation of pure Terastal energy. She also also has no idea what might happen if they're destroyed with brute force. For that reason, the player has to defeat a Stellar Tera type Pokémon near it, which causes the cluster to be desintegrated, allowing the player, Briar, Carmine and Kieran to continue their expedition.

Crystal tree

Terapagos slumbering in the deepest cavern of Area Zero Underdepths.

On an island in the center of a flooded cavern is a large, crystallized tree. This tree is similar to other trees up in Area Zero, however, it is completely crystallized and much bigger. The player has to go there and defeat a Stellar Tera type Garganacl so that they, Briar, Carmine, and Kieran can progress further into the Underdepths. It may be based on the Kalpavriksha, a wish-granting tree that is said to be made of various types of gemstones.

Secret cavern

A secret cavern filled with different items that is blocked by one of the Tera crystals clusters until the optional Stellar Tera type Garchomp is defeated.

Terapagos's cavern

This is the cavern where the Legendary Pokémon Terapagos slumbers in the form of a crystal. This Terapagos appears to be the last one of its kind after seismic shifts brought the species to the brink of extinction. The cavern is located at the very bottom of the Underdepths.

There, the player, Briar, Carmine, and Kieran find Terapagos. Kieran is the one to catch it, but after losing to the player one more time, Briar advises him to Terastallize it into its Stellar Form, which causes it to go out of control. However, the player and Kieran defeat it, allowing the player to catch it for good.

Items

This section is incomplete. Please feel free to edit this section to add missing information and complete it.

Item		Location	Games
	Stellar Tera Shard	Overworld	S  V
	Star Piece	Overworld	S  V
	Hard Stone	Overworld	S  V
	Stardust	Overworld	S  V

Pokémon

All Pokémon that appear in this zone are considered wanderer encounters internally (rather than spawning randomly), and therefore always appear in the same locations, have the standard 1/4096 chance to be Shiny, ignore any typical bonuses applied, and are additionally ineligible for naturally generated Marks (except for the Jumbo and Mini marks).

Special encounters

Mandatory Stellar Tera Pokémon

A variety of Stellar Tera Pokémon must be defeated in order to shrink the crystals blocking the way during the events of The Indigo Disk, allowing the player, Carmine, Kieran, and Briar to progress further into the Underdepths. None of them can be caught, and they are coded to never be Shiny.

Scarlet and Violet

	Types: Rock Poison Tera Type: Stellar  or  Unknown Ability: Toxic Debris Held item: None
Glimmora♂ Lv.78
Rock Slide Rock Physical   --       Power Gem Rock Special   --       Acid Armor Poison Status   --       Sludge Wave Poison Special   --

Scarlet and Violet

	Types: Flying Dragon Tera Type: Stellar  or  Unknown Ability: Frisk Held item: None
Noivern♂ Lv.78
Roost Flying Status   --       Tailwind Flying Status   --       Hurricane Flying Special   --       Boomburst Normal Special   --

Scarlet

	Types: Electric Ground Tera Type: Stellar  or  Unknown Ability: Protosynthesis Held item: None
Sandy Shocks Lv.79
Discharge Electric Special   --       Earth Power Ground Special   --       Mirror Coat Psychic Special   --       Gravity Psychic Status   --

Violet

	Types: Rock Electric Tera Type: Stellar  or  Unknown Ability: Quark Drive Held item: None
Iron Thorns Lv.79
Wild Charge Electric Physical   --       Pin Missile Bug Physical   --       Earthquake Ground Physical   --       Stealth Rock Rock Status   --

Scarlet and Violet

	Type: Rock Unknown Tera Type: Stellar  or  Unknown Ability: Purifying Salt Held item: None
Garganacl♂ Lv.80
Hammer Arm Fighting Physical   --       Heavy Slam Steel Physical   --       Earthquake Ground Physical   --       Stone Edge Rock Physical   --

Optional Stellar Tera Pokémon

Stellar Tera Type Garchomp's location

A Garchomp can be encountered and subsequently defeated in order to shrink a crystal in the room prior to one that wraps downwards in a staircase. It cannot be caught, and is coded to never be Shiny.

	Types: Dragon Ground Tera Type: Stellar  or  Unknown Ability: Sand Veil Held item: None
Garchomp♂ Lv.80
Dragon Claw Dragon Physical   --       Dig Ground Physical   --       Sandstorm Rock Status   --       Take Down Normal Physical   --

Terapagos

Battling Stellar Form Terapagos

After Kieran has been defeated, he will attempt to Terastallize Terapagos, causing it to become uncontrollable. The player must battle it with no opportunity to change teams or heal from the end of the previous battle; losing this battle will revert the game back to before the player's battle against Kieran. It must be caught by the player upon its defeat, and is coded to never be Shiny. Additionally, this Terapagos is always coded to be male, despite it having a gender ratio of one male to one female.

In the battle against Stellar Form Terapagos, it has unlimited PP for all of its moves and four times the usual amount of health, with a large health bar across the top of the screen in a similar fashion to Titan Pokémon and Starmobiles, which identifies it as Terapagos, the Hidden Treasure of Area Zero. Its Teraform Zero ability does not function. Similar to a Tera Raid Battle, it can put up a shield to become immune to many status moves and reduce the damage it takes from attacking moves. The player will be unable to Terastallize their Pokémon until they charge the Tera Orb by hitting with a certain number of damaging moves, but only two attacks are required to charge it, instead of the three from standard Tera Raid Battles. Unlike Tera Raid Battles, there is no time limit and no cheering, and the player can switch Pokémon and use items from the Bag.

Terapagos will put up three shields over the course of the battle: one at the beginning, and the others immediately after the previous shield is broken. Each shield covers 27% of Terapagos's health bar, and if any attack deals enough damage to break the shield, all further damage from that attack (including from multistrike moves) is prevented, similar to Pokémon Sword and Shield's Max Raid Battles. When a new shield is put up, Terapagos is cured of any status condition, all stat modifiers to any Pokémon are erased (but other field effects such as weather and Light Screen remain in place), and if any of the player's Pokémon have been Terastallized, they lose that status. The Tera Orb must be recharged before the player can Terastallize a Pokémon again.

• In the first phase of the battle, Terapagos is Normal type, and Carmine participates as a partner using her Sinistcha. If Sinistcha faints, the player must continue the remainder of the phase alone. If Sinistcha has not yet fainted when the shield breaks, Terapagos uses Zen Headbutt on Sinistcha at that time, even if an effect such as Imprison would normally prevent the move from being used. This extra move ignores the usual accuracy and damage formulas and is configured to deal 9999 damage; then, if Sinistcha somehow has any HP remaining afterwards, its HP will be forcefully set to 0 anyway, ensuring that Sinistcha faints and does not participate in later phases.
• In the second phase, Terapagos changes to a Psychic type, and the player must face it alone.
• In the third phase, Terapagos changes to a Water type, and Kieran joins as a partner using his remaining five Pokémon. Terapagos will remain Water type after the final shield is broken.

Pokémon Trainer Carmine Area Zero Underdepths Scarlet and Violet
Types: Grass Ghost Tera Type: Unknown  or  Unknown Ability: Hospitality Held item: None Sinistcha Lv.75 Matcha Gotcha Grass Special   --       Life Dew Water Status   --       Shadow Ball Ghost Special   --       Rage Powder Bug Status   --

Pokémon Trainer Kieran Area Zero Underdepths Scarlet and Violet

Types: Grass Dragon Tera Type: Unknown  or  Unknown Ability: Supersweet Syrup Held item: None Hydrapple♂ Lv.82 Syrup Bomb Grass Special   --       Fickle Beam Dragon Special   --       Dragon Cheer Dragon Status   --       Body Press Fighting Physical   --       Types: Dragon Flying Tera Type: Unknown  or  Unknown Ability: Multiscale Held item: None Dragonite♂ Lv.80 Hurricane Flying Special   --       Thunder Electric Special   --       Extreme Speed Normal Physical   --       Breaking Swipe Dragon Physical   --       Type: Normal Unknown Tera Type: Unknown  or  Unknown Ability: Adaptability Held item: None Porygon-Z Lv.81 Hyper Beam Normal Special   --       Shadow Ball Ghost Special   --       Thunderbolt Electric Special   --       Ice Beam Ice Special   --       Types: Dark Fairy Tera Type: Unknown  or  Unknown Ability: Prankster Held item: None Grimmsnarl♂ Lv.81 Sucker Punch Dark Physical   --       Spirit Break Fairy Physical   --       Reflect Psychic Status   --       Light Screen Psychic Status   --       Types: Fire Dark Tera Type: Unknown  or  Unknown Ability: Intimidate Held item: None Incineroar♂ Lv.81 Flare Blitz Fire Physical   --       Darkest Lariat Dark Physical   --       Fake Out Normal Physical   --       Brick Break Fighting Physical   --

	Type: Normal Unknown Tera Type: Stellar  or  Unknown Ability: Tera Shift Held item: None
Terapagos♂ Lv.85
Tera Starstorm Stellar Special   --       Zen Headbutt Psychic Physical   --       Earth Power Ground Special   --       Water Pulse Water Special   --

Trainers

When Kieran is controlling Terapagos, it possesses twice the usual amount of HP and has a large HP bar at the top of the screen that identifies it as Terapagos, the Indigo Disk.

Pokémon Trainer Kieran Area Zero Underdepths Scarlet and Violet
Type: Normal Unknown Tera Type: Unknown  or  Unknown Ability: Tera Shell Held item: None Terapagos♂ Lv.85 Zen Headbutt Psychic Physical   --       Earth Power Ground Special   --       Water Pulse Water Special   --       Curse Unknown Status   --

Music

Games	Location	Song name (Japanese)	Song name (English)	Composition	Arrangement
S  V	When in the Underdepths	ゼロの大空洞	Area Zero Underdepths	Toby Fox	Hitomi Sato
	During a wild Pokémon battle	戦闘！エリアゼロのポケモン	Battle! (Area Zero Pokémon)	Toby Fox	Go Ichinose
	When Terapagos awakens from its gem	蘇ったテラパゴス	Terapagos Reawakened	Toby Fox Rei Murayama Go Ichinose	Hiromitsu Maeba
	When battling Kieran's Terapagos in the Underdepths	戦闘！テラパゴス	Battle! (Terapagos)	Rei Murayama Go Ichinose	Go Ichinose
	When Briar prompts Kieran to Terastallize Terapagos	秘宝の条件	What the Hidden Treasure Needs	Toby Fox	Hiromitsu Maeba
	When Kieran attempts to recall Terapagos to its Poké Ball	テラパゴスの暴走	Terapagos Goes Berserk	Toby Fox Rei Murayama Go Ichinose	Hiromitsu Maeba
	When battling Stellar Form Terapagos	戦闘！ゼロの秘宝 テラパゴス	Battle! (Terapagos, the Hidden Treasure of Area Zero)	Rei Murayama Toby Fox Go Ichinose	Go Ichinose
	Upon Terapagos being captured	テラパゴスを捕まえた！	Caught Terapagos!	Toby Fox	Hiromitsu Maeba

In the TCG

Area Zero Underdepths in the TCG

Main article: Area Zero Underdepths (Stellar Crown 131)

Area Zero Underdepths was introduced as a Stadium card in the Pokémon Trading Card Game during the English Scarlet & Violet Series (the Japanese Scarlet & Violet Era). It was first released in the Japanese Stellar Miracle expansion and the English Stellar Crown expansion, with artwork by MARINA Chikazawa. A gold-etched hyper rare version with artwork by the same illustrator was released in the same sets. As long as this Stadium is in play, each player may have up to 8 Benched Pokémon (an increased amount from the normal limit of 5) if they have any Tera Pokémon in play. If a player no longer has any Tera Pokémon in play, they discard Benched Pokémon until they have 5 remaining. If this Stadium is removed from play, both players discard Benched Pokémon until they have 5 remaining, and the player who played the Stadium discards first.

In other languages

Language Title Chinese Cantonese 零之大空洞 Lìhng jī Daaihhūngduhng Mandarin 零之大空洞 Líng zhī Dàkōngdòng French Abîme Zéro German Höhlensystem Null Indonesian Gua Besar Zero Italian Grande Abisso Zero Korean 제로의 대공동 Zero-ui Daegongdong Brazilian Portuguese Abismo da Área Zero Spanish Caverna Abisal Cero

Related articles

• The Hidden Treasure of Area Zero
• Professor Sada
• Professor Turo
• Area Zero
• Area Zero journals
• Terapagos
• Paradox Pokémon
• Stellar (type)

Paldea
Settlements South: Cabo Poco • Mesagoza (Naranja Academy/Uva Academy) Los Platos • Cortondo • Alfornada • Pokémon League East: Artazon • Levincia • Zapapico West: Cascarrafa • Porto Marinada • Medali North: Montenevera South Province Area One • Area Two • Area Three Area Four • Area Five • Area Six (Alfornada Cavern) Poco Path • Inlet Grotto • South Paldean Sea East Province Area One (Schedar Squad's Base) • Area Two • Area Three Tagtree Thicket (Navi Squad's Base) • East Paldean Sea West Province Area One (Segin Squad's Base) • Area Two • Area Three Asado Desert • West Paldean Sea North Province Area One • Area Two (Caph Squad's Base) • Area Three (Ruchbah Squad's Base) Casseroya Lake (Socarrat Trail) • Glaseado Mountain (Dalizapa Passage) North Paldean Sea Great Crater of Paldea Area Zero Zero Gate • Zero Lab • Area Zero Underdepths Landmarks Ten Sights of Paldea (Colonnade Hollow) Grasswither Shrine • Icerend Shrine Groundblight Shrine • Firescourge Shrine Access to Kitakami • Blueberry Academy

Game locations of Legendary and Mythical Pokémon

Kanto Seafoam Islands • Power Plant • Victory Road • Cerulean Cave Route 10 • Route 25 • Pewter City • Roaming Pokémon Sevii Islands Mt. Ember • Navel Rock • Birth Island Johto Ilex Forest • Bell Tower • Whirl Islands • Mt. Silver Cave Burned Tower • Embedded Tower • Roaming Pokémon Hoenn Desert Ruins • Island Cave • Ancient Tomb • Cave of Origin • Marine Cave Terra Cave • Sky Pillar • Southern Island • Sea Mauville • Scorched Slab Pathless Plain • Nameless Cavern • Fabled Cave • Gnarled Den Trackless Forest • Crescent Isle • Sky • Roaming Pokémon Sinnoh Acuity Cavern • Valor Cavern • Spear Pillar • Turnback Cave Rock Peak Ruins • Iceberg Ruins • Iron Ruins • Snowpoint Temple Stark Mountain • Newmoon Island • Flower Paradise • Hall of Origin Ramanas Park • Floaroma Town • Roaming Pokémon Unova Guidance Chamber • Trial Chamber • Rumination Field • N's Castle • Abundant Shrine Giant Chasm • Dragonspiral Tower • Liberty Garden • Route 11 • Route 13 • Route 22 Route 23 • Celestial Tower • Nacrene City • Underground Ruins • Twist Mountain Dreamyard • Marvelous Bridge • Reversal Mountain • Coastal Biome • Roaming Pokémon Kalos Sea Spirit's Den • Team Flare Secret HQ • Terminus Cave Unknown Dungeon • Roaming Pokémon Alola Route 16 • Altar of the Sunne • Altar of the Moone • Mount Lanakila • Mahalo Trail Ruins of Conflict • Ruins of Life • Ruins of Abundance • Ruins of Hope Aether Paradise • Ancient Poni Path • Lake of the Sunne • Lake of the Moone Ten Carat Hill • Resolution Cave Galar Tower summit • Battle Tower • Master Dojo • Crown Shrine • Max Lair Rock Peak Ruins • Iceberg Ruins • Iron Ruins • Split-Decision Ruins • Giant's Bed Frigid Sea • Lakeside Cave • Ballimere Lake • Freezington • Roaming Pokémon Hisui Seaside Hollow • Temple of Sinnoh • Acuity Cavern • Valor Cavern • Verity Cavern Lava Dome Sanctum • Moonview Arena • Snowpoint Temple • Turnback Cave • Bonechill Wastes Cobalt Coastlands • Ramanas Island • Scarlet Bog • Coronet Highlands • Floaro Gardens Paldea Grasswither Shrine • Icerend Shrine • Groundblight Shrine • Firescourge Shrine Poco Path • Area Zero • Area Zero Underdepths • Glaseado Mountain South Province (Area One) • Asado Desert • West Province (Area One) • East Province (Area Three) Casseroya Lake • North Paldean Sea • South Province (Area Four) • North Province (Area Two) Alfornada Cavern • Great Crater of Paldea • Tagtree Thicket • East Province (Area One) South Province (Area Five) • Dalizapa Passage • Pokémon League • Socarrat Trail Kitakami Paradise Barrens • Wistful Fields • Oni Mountain • Dreaded Den • Loyalty Plaza Other Faraway Island • Distortion World • Sinjoh Ruins • Ultra Space Wilds

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