New Pokémon Forms

While technically Tauros is a Paldean Form, its Paldean form has got two different alternate forms. These forms are version exclusive and change Paldean Tauros' type, as well as the type of its signature move, Raging Bull.

Combat Breed	Blaze Breed	Aqua Breed
Both games	Pokémon Scarlet	Pokémon Violet

If you breed Paldean Tauros in Kitakami, the egg will automatically be Kantonian Tauros.

In Kitakami, you can follow Perrin's story to hunt for pictures of a mysterious Pokémon in Timeless Forest. When you reach the end of the story you will find amysterious Ursaluna that has come over from the Hisui region. This Ursaluna can't change forms aad you can't evolve Ursaring into it. It has different stats, moves and abilities

Hisuian	Bloodmoon
Stats: HP: 130 Atk: 140 Def: 105 SAtk: 45 SDef: 80 Speed: 50	Stats: HP: 113 Atk: 70 Def: 120 SAtk: 135 SDef: 65 Speed: 52

After evolving Finizen into Palafin, it will take an appearance nearly identical to its previous evolution. However, due to its Ability, when you switch it out of battle, it will automatically change its form to Hero Form which has higher stats.

Zero Form	Hero Form
Stats: HP: 100 Atk: 70 Def: 72 SAtk: 53 SDef: 62 Speed: 100	Stats: HP: 100 Atk: 160 Def: 97 SAtk: 106 SDef: 87 Speed: 100

Dudunsparce, the evolved form of Dunsparce, has got two different forms. These forms are not interchangeable and are largely aesthetic. They are determined based on the internal data of the game and are an effective random form change, with it being an approximate 1% chance of getting Three-Segment Form.

Two-Segment Form	Three-Segment Form

Maushold, the evolved form of Tandemaus, has got two different forms. These forms are not interchangeable and are determined based on the internal data of the game and are an effective random form change, with it being an approximate 1% chance of getting Family of Three.

Family of Three	Family of Four

Tatsugiri's alternate forms are largely aesthetic and cannot be changed. However, they do have a special effect when it is in battle alongside a Dondozo. If Curly Form, then the user's Attack raises by one stage
If Droopy Form, then user's Defense raises by one stage
If Stretchy Form, then user's Speed raises by one stage.

Curly Form	Stretchy Form	Droopy Form
Order Up Effect Attack raised 1 Stage	Order Up Effect Speed raised 1 Stage	Order Up Effect Defense raised 1 Stage

Squawkabilly has got four different forms and these forms are all aesthetic and cannot be changed, but the Yellow and White Plumage ones have got different Hidden Abilities

Green Plumage	Yellow Plumage	Blue Plumage	White Plumage

Ogerpon has got four different forms based on the Mask it has as its Hold Item. These have different types and abilities, and a different boost from a second Ability when they Terastallise. Ogerpon's Tera Type is unable to be changed and is based on the type of its form

Teal Mask	Wellspring Mask	Hearthflame Mask	Cornerstone Mask
Defiant Embody Aspect Boost - Speed	Water Absorb Embody Aspect Boost - Sp. Def	Mold Breaker Embody Aspect Boost - Attack	Sturdy Embody Aspect Boost - Defense
Terastallized Forms
Embody Aspect Boost - Speed	Embody Aspect Boost - Sp. Def	Embody Aspect Boost - Attack	Embody Aspect Boost - Defense

Terapagos has got three different forms which all function uniquely. These are all battle change forms and have Terapagos change based upon its current battle state and each has different stats. At all standard times, Terapagos will be in its Normal Form but with its ability Tera Shift, it changes into Terastal Form. When it Terastallises into the Stellar Type, it changes into the Stellar Form

Normal Form	Terastal Form	Stellar Form
Tera Shift	Tera Shell	Teraform Zero
Base Stats: HP: 90 Attack: 65 Defense: 85 Sp. Attack: 65 Sp. Defense: 85 Speed: 60	Base Stats: HP: 95 Attack: 95 Defense: 110 Sp. Attack: 105 Sp. Defense: 110 Speed: 85	Base Stats: HP: 160 Attack: 105 Defense: 110 Sp. Attack: 130 Sp. Defense: 110 Speed: 85

Rotom's forms make a return once again, and once again you can do it through the Rotom Catalog. To get the Rotom Catalog, you need to have a Rotom in your party or boxes. Then go to Porto Marianda and a special auction will be held to purchase the Rotom Catalog

Rotom	Mow Rotom	Frost Rotom	Heat Rotom	Fan Rotom	Wash Rotom
	Leaf Storm	Blizzard	Overheat	Air Slash	Hydro Pump
Base Stats: HP: 50 Attack: 50 Defense: 77 Sp. Attack: 95 Sp. Defense: 77 Speed: 91	Base Stats: HP: 50 Attack: 65 Defense: 107 Sp. Attack: 105 Sp. Defense: 107 Speed: 86

After many generations of not being available in the wild, Deerling and Sawsbuck return to Pokémon Scarlet & Violet. These Pokémon have their forms based on the location you catch them in, but like with their original appearances, they do change their form

If Deerling or Sawsbuck are in your party when you boot your game up, their form will change to match the location you currently are in.

If they remain in your box, they will not change form. They will also not change form when removed from the Box into your party. It only changes when you boot the game up

Spring Form	Summer Form	Autumn Form	Winter Form
Location: South Paldea	Location: East Paldea	Location: West Paldea	Location: North Paldea

Vivillon's form is set as default to the Fancy Pattern in this game, but as of Version 1.2, there is now a way to change this. If you send a postcard from Pokémon GO from the respective region to Pokémon Scarlet & Violet, then for 24 hours all Scatterbug, Spewpa and Vivillon caught in the game during the time period will turn to that form. After that, it returns to Fancy Pattern Vivillon

Oricorio makes a return in Scarlet & Violet. In these games, only Pom-Pom Style and Baile Style are available in the wild in Paldea and Sensu Style in Kitakami, but you have the ability to change the form of all Oricorio using Nectar which can be purchased in shops

Pom-Pom Style	Baile Style	P'au Style	Sensu Style

Hoopa makes a return through transfer in Pokémon Scarlet & Violet and changes form by the Prison Bottle as before, obtained by the Auctions if you have Hoopa in your game, however there are some changes in how the Prison Bottle works compared to past games. Now, after you change form between Hoopa, Hoopa Unbound will no longer revert back into Hoopa Confined after 3 days. In addition to this, the moves Hyperspace Hole and Hyperspace Fury will change to match the form if in Hoopa's movepool meaning Hyperspace Hole can only be known by Hoopa Confined and Hyperspace Fury by Hoopa Unbound

Hoopa Confined	Hoopa Unbound
Mischief Pokémon	Djinn Pokémon
Base Stats: HP: 80 Attack: 110 Defense: 60 Sp. Attack: 150 Sp. Defense: 130 Speed: 70	Base Stats: HP: 80 Attack: 160 Defense: 60 Sp. Attack: 170 Sp. Defense: 130 Speed: 80

Having had forms introduced in Pokémon Legends Arceus, when you have transferred Dialga, Palkia or Giratina over to the game, you will be able to get the special item that changes their form. Unlike in Pokémon Legends Arceus, these items are hold items and need to be held by the Pokémon in order for it to change form.
Giratina also features a new change in this game where the Griseous Orb will no longer change its form when held. Instead, the Griseous Core will change the form while Griseous Orb just gives the boost to Altered Forme Giratina

Standard Forme	Origin Forme
Base Stats: HP: 100 Attack: 120 Defense: 120 Sp. Attack: 150 Sp. Defense: 100 Speed: 90	Base Stats: HP: 100 Attack: 100 Defense: 120 Sp. Attack: 150 Sp. Defense: 120 Speed: 90
Hold Item: Any Other Item	Hold Item: Adamant Crystal
Standard Forme	Origin Forme
Hold Item: Any Other Item	Hold Item: Lustrous Globe
Base Stats: HP: 90 Attack: 120 Defense: 100 Sp. Attack: 150 Sp. Defense: 120 Speed: 100	Base Stats: HP: 90 Attack: 100 Defense: 100 Sp. Attack: 150 Sp. Defense: 120 Speed: 120
Alterd Forme	Origin Forme
Base Stats: HP: 150 Attack: 100 Defense: 120 Sp. Attack: 100 Sp. Defense: 120 Speed: 90	Base Stats: HP: 150 Attack: 120 Defense: 100 Sp. Attack: 120 Sp. Defense: 100 Speed: 90
Hold Item: Any Other Item	Hold Item: Griseous Core

As with all other forms, Shaymin's item to change the form, the Gracidea, can be found in the Auction House in Porto Marinada. The Gracidea works similar to before in that it can change Shaymin's form between the two. However, if Shaymin is frozen or it is currently night in whichever region you're in then you can't use it.

Like with recent games, it won't revert when you put it into the box

Land Forme	Sky Forme
Base Stats: HP: 100 Attack: 100 Defense: 100 Sp. Attack: 100 Sp. Defense: 100 Speed: 100	Base Stats: HP: 100 Attack: 103 Defense: 75 Sp. Attack: 120 Sp. Defense: 75 Speed: 127

In a change from the prior games where you had to go to a specific location to change them, Pokémon Scarlet & Violet made it so to change Deoxys' form, you can use the Meteorite Key Item. This item is found in the Porto Marinada Auction House if you have a Deoxys in your box. This will allow you to choose the form your Deoxys changes into

Normal Forme	Attack Forme	Defense Forme	Speed Forme
Base Stats: HP: 50 Attack: 150 Defense: 50 Sp. Attack: 150 Sp. Defense: 50 Speed: 150	Base Stats: HP: 50 Attack: 180 Defense: 20 Sp. Attack: 180 Sp. Defense: 20 Speed: 150	Base Stats: HP: 50 Attack: 70 Defense: 160 Sp. Attack: 70 Sp. Defense: 160 Speed: 90	Base Stats: HP: 50 Attack: 95 Defense: 90 Sp. Attack: 95 Sp. Defense: 90 Speed: 180

Minior is a Pokémon whose forms don't really change beyond the change between its Meteorite and Core form when its Shields Down ability activates. However, its different colours do have some locational properties. While all Minior do spawn in all areas that Minior spawns, each area has got a specific Minior Form that is a little bit more common

Meteor Form	Blue Core	Green Core	Indigo Core	Orange Core	Red Core	Violet Core	Yellow Core
	Polar Biome	Coastal Biome	Coastal Biome Cave by bridge in north east of land	Canyon Biome	Torchlit Labyrinth	Polar Biome In a cave in the mountain	Chargestone Cavern
Base Stats HP: 60 Attack: 60 Defense: 100 Sp. Attack: 60 Sp. Defense: 100 Speed: 60	Base Stats HP: 60 Attack: 100 Defense: 60 Sp. Attack: 100 Sp. Defense: 60 Speed: 120