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What to Do After Beating the Pokémon League in FireRed

Catch 60 Kanto species for the National Pokédex, then help Celio recover the Ruby and Sapphire to open the Sevii Islands, Cerulean Cave, and the upgraded Elite Four rematch.
WorldFireRed Length2 min Posted Quest giverVGSources Team
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After becoming Champion in Pokémon FireRed, catch 60 different Kanto species and speak with Professor Oak to receive the National Pokédex. Then go to One Island and talk to Celio: his Ruby-and-Sapphire quest opens the rest of the Sevii Islands, and completing it unlocks Cerulean Cave, Mewtwo, and the stronger Elite Four rematch.

Get the National Pokédex

Oak’s postgame Pokédex requires you to have caught 60 different Kanto Pokémon species. Once you meet that threshold, speak with Professor Oak to receive the National Pokédex. The count is for distinct species caught, not simply seen; check your Pokédex and catch additional species if you are short.

Start Celio’s quest on One Island

Travel to One Island and speak with Celio. He asks you to find the Ruby at Mt. Ember. Return the Ruby to him to receive the Rainbow Pass, which grants access to Four, Five, Six, and Seven Islands.

Continue the Ruby-and-Sapphire quest

With the other islands open, follow Celio’s remaining objectives to find the Sapphire and restore the Network Machine. This is the central postgame storyline, and it advances the machine used for trading connectivity with Hoenn games. If you completed some of the One Island Sevii Islands content before the League, resume from your current quest progress rather than repeating it.

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#1 Best Overall
Pokémon FireRed Version Standard - Nintendo Switch [Digital Code]
  • Set off on a grand adventure to become the Pokémon League Champion—now on Nintendo Switch!
  • Celebrate 30 years of Pokémon with this Nintendo Switch version* of the Pokémon FireRed Version game originally released on the Game Boy Advance system!
  • Additional games and systems required for multiplayer mode. Sold separately. 2004 Pokémon. 1995-2004 Nintendo/Creatures Inc./GAME FREAK inc. Pokémon and Nintendo Switch are trademarks of Nintendo.

Choose what to pursue next

Goal What to do What it leads to
Continue the story Complete Celio’s Ruby-and-Sapphire objectives across the islands. Restores the Network Machine and advances the postgame storyline.
Catch Mewtwo Finish Celio’s quest, then explore Cerulean Cave. Cerulean Cave becomes accessible; Mewtwo is inside.
Take on a tougher battle Complete the Sevii Islands storyline, then return to the Indigo Plateau. The Elite Four and Champion are available for an upgraded rematch.
Work on your collection Explore the newly accessible islands and pursue remaining Pokédex entries. Available Pokémon and special encounters vary by version and platform.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Support on Ko-Fi

Check your version for ticket encounters

Special-ticket content is not consistent across every release. A March 2026 gaming feature reported that the Switch and Switch 2 versions include Mystic Ticket and Aurora Ticket content, enabling encounters at Navel Rock and Birth Island. That is secondary reporting, so check the specific release you are playing before following GBA-era event instructions.

Rank #4
Pokémon TCG: Mega Evolution - Phantasmal Flames Booster Pack (10 Cards)
  • Each booster pack contains 10 cards, 1 Basic Energy, and 1 Pokémon TCG Live code card. Cards vary by pack.
  • Noteworthy cards from the expansion include: Six Mega Evolution Pokémon ex, four Pokémon ex, 13 illustration rare Pokémon, 17 ultra rare Mega Evolution Pokémon ex, Five special illustration rare Mega Evolution Pokémon ex and Supporter cards.
Rank #3
Pokemon FireRed Version
  • Join up to 39 other wireless Trainers in the Union Room for a free-for-all, or connect with just two or three in the Direct Corner
  • Prove yourself in the region's Pokémon League while single-handedly bringing down Team Rocket - then open up all-new storylines with unexpected twists
  • Bring the Pokemon you capture in Fire Red to the worlds of Leaf Green, Pokemon Ruby and Sapphire, or Pokemon Colosseum for more challenge
Rank #2
Sale
Pokemon: FireRed Version (Renewed)
  • This renewed game will not come with the original case or manual; cartridge only. It has been cleaned, tested, and is in nice condition.

Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.

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