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.

C
Yanma
#0193

Yanma

bugflying
C
Wooper
#0194

Wooper

waterground
C
Quagsire
#0195

Quagsire

waterground
B
Espeon
#0196

Espeon

psychic
C
Umbreon
#0197

Umbreon

dark
C
Murkrow
#0198

Murkrow

darkflying
C
Slowking
#0199

Slowking

waterpsychic
C
Misdreavus
#0200

Misdreavus

ghost
D
Unown
#0201

Unown

Psychic
C
Wobbuffet
#0202

Wobbuffet

psychic
C
Girafarig
#0203

Girafarig

normalpsychic
C
Pineco
#0204

Pineco

bug
C
Forretress
#0205

Forretress

bugsteel
C
Dunsparce
#0206

Dunsparce

normal
B
Gligar
#0207

Gligar

groundflying
C
Steelix
#0208

Steelix

steelground
D
Snubbull
#0209

Snubbull

fairy
C
Granbull
#0210

Granbull

fairy
C
Qwilfish
#0211

Qwilfish

waterpoison
S
Scizor
#0212

Scizor

bugsteel
B
Shuckle
#0213

Shuckle

bugrock
C
Heracross
#0214

Heracross

bugfighting
C
Sneasel
#0215

Sneasel

darkice
D
Teddiursa
#0216

Teddiursa

normal
C
Ursaring
#0217

Ursaring

normal
D
Slugma
#0218

Slugma

fire
C
Magcargo
#0219

Magcargo

firerock
D
Swinub
#0220

Swinub

iceground
C
Piloswine
#0221

Piloswine

iceground
C
Corsola
#0222

Corsola

waterrock
D
Remoraid
#0223

Remoraid

water
C
Octillery
#0224

Octillery

water
D
Delibird
#0225

Delibird

iceflying
C
Mantine
#0226

Mantine

waterflying
B
Skarmory
#0227

Skarmory

steelflying
D
Houndour
#0228

Houndour

darkfire
C
Houndoom
#0229

Houndoom

darkfire
B
Kingdra
#0230

Kingdra

waterdragon
D
Phanpy
#0231

Phanpy

ground
C
Donphan
#0232

Donphan

ground
B
Porygon2
#0233

Porygon2

normal
C
Stantler
#0234

Stantler

normal
C
Smeargle
#0235

Smeargle

normal
D
Tyrogue
#0236

Tyrogue

fighting
C
Hitmontop
#0237

Hitmontop

fighting
D
Smoochum
#0238

Smoochum

icepsychic
D
Elekid
#0239

Elekid

electric
D
Magby
#0240

Magby

fire
  • 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