Altering Cave FireRed & LeafGreen · Sevii Islands area
Altering Cave is a small cave on Outcast Island. In a normal FireRed or LeafGreen game its only wild Pokémon is Zubat, and it has no trainers or items, so most players skip it.
- Wild Pokémon
- 1
- Items
- 0
- Trainers
- 0
- Needs
- Rainbow Pass (for the ferry to Six Island), Surf (to reach Outcast Island)
Connects to: Outcast Island
Altering Cave on the Sevii Islands map
Wild Pokémon
Six Island Altering Cave
| Pokémon | Type | Lv. | FireRed | LeafGreen |
|---|---|---|---|---|
 Zubat | Poison | 6–16 | 100% | 100% |
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
No items to pick up here.
Tips
- In a normal game only Zubat appears here, at levels 6 to 16.
- There are no trainers or items, so the cave is only useful for catching a Zubat.
- Zubat is available at easier spots earlier in the game, so this cave is mostly of interest for completionists.
- A Zubat caught here can still evolve into Golbat, and into Crobat with high friendship.
Walkthrough: Part 16: Post-Game Extras
FAQ
What Pokémon are in Altering Cave?
In a normal FireRed or LeafGreen game, only Zubat.
Are there items or trainers?
No, the cave has neither.
Where is the cave?
On Outcast Island, north of Green Path on Six Island.
What Pokémon can you catch in Altering Cave in FireRed and LeafGreen?
1 species: Zubat.
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).