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
Bulbasaur
#0001

Bulbasaur

grasspoison
D
Ivysaur
#0002

Ivysaur

grasspoison
C
Venusaur
#0003

Venusaur

grasspoison
D
Charmander
#0004

Charmander

fire
D
Charmeleon
#0005

Charmeleon

fire
C
Charizard
#0006

Charizard

fireflying
C
Squirtle
#0007

Squirtle

water
D
Wartortle
#0008

Wartortle

water
C
Blastoise
#0009

Blastoise

water
D
Caterpie
#0010

Caterpie

bug
D
Metapod
#0011

Metapod

bug
C
Butterfree
#0012

Butterfree

bugflying
D
Weedle
#0013

Weedle

bugpoison
D
Kakuna
#0014

Kakuna

bugpoison
C
Beedrill
#0015

Beedrill

bugpoison
D
Pidgey
#0016

Pidgey

normalflying
D
Pidgeotto
#0017

Pidgeotto

normalflying
C
Pidgeot
#0018

Pidgeot

normalflying
D
Rattata
#0019

Rattata

normal
C
Raticate
#0020

Raticate

normal
D
Spearow
#0021

Spearow

normalflying
C
Fearow
#0022

Fearow

normalflying
D
Ekans
#0023

Ekans

poison
C
Arbok
#0024

Arbok

poison
C
Pikachu
#0025

Pikachu

electric
B
Raichu
#0026

Raichu

electric
D
Sandshrew
#0027

Sandshrew

ground
C
Sandslash
#0028

Sandslash

ground
D
Nidoran♀ (female)
#0029

Nidoran♀ (female)

poison
D
Nidorina
#0030

Nidorina

poison
B
Nidoqueen
#0031

Nidoqueen

poisonground
D
Nidoran♂ (male)
#0032

Nidoran♂ (male)

poison
D
Nidorino
#0033

Nidorino

poison
B
Nidoking
#0034

Nidoking

poisonground
C
Clefairy
#0035

Clefairy

fairy
B
Clefable
#0036

Clefable

fairy
D
Vulpix
#0037

Vulpix

fire
C
Ninetales
#0038

Ninetales

fire
D
Jigglypuff
#0039

Jigglypuff

normalfairy
C
Wigglytuff
#0040

Wigglytuff

normalfairy
D
Zubat
#0041

Zubat

poisonflying
C
Golbat
#0042

Golbat

poisonflying
D
Oddish
#0043

Oddish

grasspoison
C
Gloom
#0044

Gloom

grasspoison
C
Vileplume
#0045

Vileplume

grasspoison
C
Paras
#0046

Paras

buggrass
C
Parasect
#0047

Parasect

buggrass
D
Venonat
#0048

Venonat

bugpoison
  • 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