Four Island FireRed & LeafGreen · Sevii island
Four Island is the first of the later Sevii islands, which you can only reach once Celio gives you the Rainbow Pass in the post-game. It has a Pokémon Center, a Poké Mart, a Pokémon Day Care, Lorelei's House and the path to Icefall Cave.
- Wild Pokémon
- 9
- Items
- 4
- Trainers
- 0
- Needs
- Rainbow Pass
Connects to: Icefall Cave
Four Island on the Sevii Islands map
Wild Pokémon
| Pokémon | Type | Lv. | FireRed | LeafGreen |
|---|---|---|---|---|
 Marill | Water | 5–25 | – | 70% |
 Wooper | WaterGround | 5–25 | 70% | – |
 Psyduck | Water | 5–35 | 30% | – |
 Slowpoke | WaterPsychic | 5–35 | – | 30% |
| Rod | Pokémon | Lv. | FireRed | LeafGreen |
|---|---|---|---|---|
| Old Rod |  Magikarp | 5 | 100% | 100% |
| Good Rod |  Poliwag | 5–15 | 60% | 60% |
 Goldeen | 5–15 | 20% | 20% | |
| Magikarp | 5–15 | 20% | 20% | |
| Super Rod | Poliwag | 15–25 | 40% | 40% |
 Poliwhirl | 20–30 | 40% | 40% | |
 Gyarados | 15–25 | 15% | 15% | |
| Psyduck | 15–35 | 5% | – | |
| Slowpoke | 15–35 | – | 5% |
Chances are the game’s encounter slots for each version (grass 20/20/10/10/10/10/5/5/4/4/1/1, surfing and Rock Smash 60/30/5/4/1, Old Rod 70/30, Good Rod 60/20/20, Super Rod 40/40/15/4/1). A dash means the Pokémon does not appear in that version here. Version exclusives · Where to find every Pokémon.
Items
| Item | How |
|---|---|
| Star Piece | Item ball |
| Stardust | Item ball |
| Pearl | Hidden |
| Ultra Ball | Hidden |
Hidden items sparkle with the Itemfinder.
Shops
Poké Mart
Ultra Ball ₽1,200Full Restore ₽3,000Max Potion ₽2,500Revive ₽1,500Ice Heal ₽250Full Heal ₽600Escape Rope ₽550Max Repel ₽700
Tips
- You need the Rainbow Pass, which Celio gives you after you have the National Pokédex and bring him the Ruby from Mt. Ember.
- The Poké Mart has better stock than earlier islands: Ultra Ball, Full Restore, Max Potion, Revive, Ice Heal, Full Heal, Escape Rope and Max Repel.
- Surfing and fishing differ by version: Wooper and Psyduck in FireRed, Marill and Slowpoke in LeafGreen, and the Super Rod brings up Poliwhirl and Gyarados in both.
- Look for the Star Piece and Stardust item balls and the hidden Pearl and Ultra Ball on the island.
Walkthrough: Part 15: Sevii Islands Four to Seven
FAQ
How do I get to Four Island?
Once you are Champion and have the National Pokédex, bring Celio the Ruby from Mt. Ember to receive the Rainbow Pass, then take the Seagallop.
Which Pokémon differ between FireRed and LeafGreen on Four Island?
FireRed has Wooper and Psyduck, while LeafGreen has Marill and Slowpoke.
What does the Four Island Poké Mart sell?
Ultra Ball, Full Restore, Max Potion, Revive, Ice Heal, Full Heal, Escape Rope and Max Repel.
What Pokémon can you catch in Four Island in FireRed and LeafGreen?
9 species: Marill, Wooper, Psyduck, Slowpoke, Magikarp, Poliwag, Goldeen, Poliwhirl, Gyarados. FireRed only: Wooper, Psyduck. LeafGreen only: Marill, Slowpoke.
Sources & picture credits
Guide text is original retrogameindex writing, checked against Bulbapedia and the game data. Wild Pokémon and encounter chances for both versions, items, trainers, gifts, trades and shops come from the pret/pokefirered decompilation (pret/pokefirered 037335f4c7). Maps and sprites © Nintendo / Creatures / GAME FREAK, archived from the Bulbagarden Archives; the region maps are drawn from the game’s own map graphics (listed on the image gallery).