USUM expands the Alola Pokedex over Sun and Moon. More Pokemon are available earlier, new Ultra Beasts join the roster, and Ultra Warp Ride opens up legendaries from every past generation. The late game is harder too. Ultra Necrozma will sweep your team if you're not ready. Same Trial system, bigger Pokedex.

D
Drilbur
#0529

Drilbur

ground
A
Excadrill
#0530

Excadrill

groundsteel
C
Audino
#0531

Audino

normal
D
Timburr
#0532

Timburr

fighting
C
Gurdurr
#0533

Gurdurr

fighting
C
Conkeldurr
#0534

Conkeldurr

fighting
D
Tympole
#0535

Tympole

water
D
Palpitoad
#0536

Palpitoad

waterground
C
Seismitoad
#0537

Seismitoad

waterground
C
Throh
#0538

Throh

fighting
C
Sawk
#0539

Sawk

fighting
D
Sewaddle
#0540

Sewaddle

buggrass
C
Swadloon
#0541

Swadloon

buggrass
C
Leavanny
#0542

Leavanny

buggrass
D
Venipede
#0543

Venipede

bugpoison
D
Whirlipede
#0544

Whirlipede

bugpoison
C
Scolipede
#0545

Scolipede

bugpoison
D
Cottonee
#0546

Cottonee

grassfairy
B
Whimsicott
#0547

Whimsicott

grassfairy
D
Petilil
#0548

Petilil

grass
C
Lilligant
#0549

Lilligant

grass
D
Basculin
#0550

Basculin

water
D
Sandile
#0551

Sandile

grounddark
D
Krokorok
#0552

Krokorok

grounddark
B
Krookodile
#0553

Krookodile

grounddark
D
Darumaka
#0554

Darumaka

fire
B
Darmanitan
#0555

Darmanitan

fire
C
Maractus
#0556

Maractus

grass
D
Dwebble
#0557

Dwebble

bugrock
C
Crustle
#0558

Crustle

bugrock
D
Scraggy
#0559

Scraggy

darkfighting
C
Scrafty
#0560

Scrafty

darkfighting
C
Sigilyph
#0561

Sigilyph

psychicflying
D
Yamask
#0562

Yamask

ghost
C
Cofagrigus
#0563

Cofagrigus

ghost
D
Tirtouga
#0564

Tirtouga

waterrock
C
Carracosta
#0565

Carracosta

waterrock
C
Archen
#0566

Archen

rockflying
C
Archeops
#0567

Archeops

rockflying
D
Trubbish
#0568

Trubbish

poison
C
Garbodor
#0569

Garbodor

poison
D
Zorua
#0570

Zorua

dark
C
Zoroark
#0571

Zoroark

dark
D
Minccino
#0572

Minccino

normal
C
Cinccino
#0573

Cinccino

normal
D
Gothita
#0574

Gothita

psychic
D
Gothorita
#0575

Gothorita

psychic
C
Gothitelle
#0576

Gothitelle

psychic
  • 807 total, five more than Sun and Moon. The new additions are Ultra Beasts: Poipole, Naganadel, Stakataka, Blacephalon, and Zeraora. The Alola dex is slightly expanded with more encounter options early.

  • The story diverges around the midpoint. Necrozma absorbs the box legendary to become Ultra Necrozma, one of the hardest boss fights in any Pokemon game. Ultra Warp Ride lets you catch legendaries from every past generation. New Ultra Beasts, more early encounters, and the Mantine Surf minigame are added.

  • Ultra Necrozma has 167 Sp. Atk, 97 Speed, and gets a stat-boosting aura on top of that. It will sweep most teams. Common strategies: Zoroark's Illusion to bait a Fighting-type move, Toxic stalling, or a Focus Sash Pokemon with a super effective hit. It's level 60 and the biggest difficulty spike in the series.

  • A minigame where you fly through Ultra Space on Solgaleo or Lunala. Different colored wormholes lead to different Pokemon. Legendary Pokemon from past generations (Mewtwo, Ho-Oh, Groudon, etc.) appear in the furthest wormholes. It's the main way to catch non-Alolan legendaries without transferring from older games.

  • Still Gen 7, 3DS, 2017. USUM is the enhanced take on Alola. Same Trial system, but the story diverges around the midpoint into Ultra Space content. More Pokemon available earlier, new Ultra Beasts, and a harder endgame stretch.

  • Same three starters as Sun and Moon. Litten's Incineroar is still the most practical for the story since Intimidate neuters Totem Pokemon. But team building matters more in USUM because Ultra Necrozma demands a specific answer on your squad.

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Pokemon Comparison