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.

Showing all 825 Pokemon that can exist in Ultrasun Ultramoon, including transfers from other games.

How the USUM Pokedex expanded from Sun & Moon

USUM boosts the Alola dex from 302 to 403 Pokemon. Over 100 species are available that weren't in the originals.

Ultra Wormhole travel is the standout postgame feature. Ride Solgaleo or Lunala through wormholes and you can encounter every non-event legendary from past generations. The farther you travel, the rarer the finds. Island Scan (QR codes) adds more variety on a weekly rotation. With Pokemon Bank, the full 807 is reachable.

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Watchog - Pokemon Ultra Sun & Ultra Moon
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Watchog

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Purrloin - Pokemon Ultra Sun & Ultra Moon
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Purrloin

dark
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Liepard - Pokemon Ultra Sun & Ultra Moon
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Liepard

dark
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Pansage - Pokemon Ultra Sun & Ultra Moon
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Pansage

grass
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Simisage - Pokemon Ultra Sun & Ultra Moon
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Simisage

grass
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Pansear - Pokemon Ultra Sun & Ultra Moon
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Pansear

fire
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Simisear - Pokemon Ultra Sun & Ultra Moon
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Simisear

fire
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Panpour - Pokemon Ultra Sun & Ultra Moon
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Panpour

water
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Simipour - Pokemon Ultra Sun & Ultra Moon
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Simipour

water
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Munna - Pokemon Ultra Sun & Ultra Moon
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Munna

psychic
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Musharna - Pokemon Ultra Sun & Ultra Moon
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Musharna

psychic
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Pidove - Pokemon Ultra Sun & Ultra Moon
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Pidove

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Tranquill - Pokemon Ultra Sun & Ultra Moon
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Tranquill

normalflying
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Unfezant - Pokemon Ultra Sun & Ultra Moon
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Unfezant

normalflying
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Blitzle - Pokemon Ultra Sun & Ultra Moon
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Blitzle

electric
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Zebstrika - Pokemon Ultra Sun & Ultra Moon
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Zebstrika

electric
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Woobat - Pokemon Ultra Sun & Ultra Moon
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Woobat

psychicflying
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Swoobat - Pokemon Ultra Sun & Ultra Moon
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Swoobat

psychicflying
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Drilbur - Pokemon Ultra Sun & Ultra Moon
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Drilbur

ground
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Excadrill - Pokemon Ultra Sun & Ultra Moon
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Excadrill

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Audino - Pokemon Ultra Sun & Ultra Moon
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Audino

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Timburr - Pokemon Ultra Sun & Ultra Moon
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Timburr

fighting
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Gurdurr - Pokemon Ultra Sun & Ultra Moon
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Gurdurr

fighting
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Conkeldurr - Pokemon Ultra Sun & Ultra Moon
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Conkeldurr

fighting
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Tympole - Pokemon Ultra Sun & Ultra Moon
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Tympole

water
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Palpitoad - Pokemon Ultra Sun & Ultra Moon
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Palpitoad

waterground
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Seismitoad - Pokemon Ultra Sun & Ultra Moon
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Seismitoad

waterground
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Throh - Pokemon Ultra Sun & Ultra Moon
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Throh

fighting
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Sawk - Pokemon Ultra Sun & Ultra Moon
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Sawk

fighting
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Sewaddle - Pokemon Ultra Sun & Ultra Moon
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Sewaddle

buggrass
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Swadloon - Pokemon Ultra Sun & Ultra Moon
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Swadloon

buggrass
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Leavanny - Pokemon Ultra Sun & Ultra Moon
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Leavanny

buggrass
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Venipede - Pokemon Ultra Sun & Ultra Moon
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Venipede

bugpoison
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Whirlipede - Pokemon Ultra Sun & Ultra Moon
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Whirlipede

bugpoison
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Scolipede - Pokemon Ultra Sun & Ultra Moon
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Scolipede

bugpoison
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Darumaka - Pokemon Ultra Sun & Ultra Moon
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Darumaka

fire
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Darmanitan - Pokemon Ultra Sun & Ultra Moon
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Darmanitan

fire
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Maractus - Pokemon Ultra Sun & Ultra Moon
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Maractus

grass
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Dwebble - Pokemon Ultra Sun & Ultra Moon
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Dwebble

bugrock
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Crustle - Pokemon Ultra Sun & Ultra Moon
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Crustle

bugrock
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Sigilyph - Pokemon Ultra Sun & Ultra Moon
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Sigilyph

psychicflying
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Yamask - Pokemon Ultra Sun & Ultra Moon
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Yamask

ghost
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Cofagrigus - Pokemon Ultra Sun & Ultra Moon
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Cofagrigus

ghost
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Gothita - Pokemon Ultra Sun & Ultra Moon
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Gothita

psychic
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Gothorita - Pokemon Ultra Sun & Ultra Moon
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Gothorita

psychic
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Gothitelle - Pokemon Ultra Sun & Ultra Moon
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Gothitelle

psychic
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Solosis - Pokemon Ultra Sun & Ultra Moon
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Solosis

psychic
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Duosion - Pokemon Ultra Sun & Ultra Moon
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Duosion

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  • 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