Altering Cave Emerald · Dungeon

Altering Cave is a small cave on Route 103 that opens only after you enter the Hall of Fame. It was meant to change its wild Pokémon through Mystery Gift events. Those events were never distributed, so in a normal game it holds only Zubat at Lv6–16.
- Wild Pokémon
- 1
- Items
- 0
- Trainers
- 0
Connects to: Route 103
Altering Cave on the Hoenn map
Wild Pokémon
| Pokémon | Type | Lv. | Chance |
|---|---|---|---|
Zubat | Poison | 6–16 | 100% |
Chances are the game’s encounter slots (grass and caves 20/20/10/10/10/10/5/5/4/4/1/1, surfing, diving and Rock Smash 60/30/5/4/1, Old Rod 70/30, Good Rod 60/20/20, Super Rod 40/40/15/4/1). Emerald has no time-of-day encounters. Where to find every Pokémon.
Items
No items to pick up here.
Tips
- Every encounter is Zubat (100%), so carry Repels if you are just exploring.
- There are no items or trainers inside.
- For Johto Pokémon, go to the post-game Safari Zone extension instead, and for Smeargle go to Artisan Cave at the Battle Frontier.
- The entrance stays closed until you have entered the Hall of Fame.
FAQ
Why does Altering Cave only have Zubat in Pokémon Emerald?
Its other encounter sets were tied to Mystery Gift events that were never distributed, so the default Zubat table is all you see.
When does Altering Cave open in Emerald?
After you enter the Hall of Fame.
Where is Altering Cave?
On Route 103, north of Oldale Town.
What Pokémon can you catch in Altering Cave in Emerald?
1 species: Zubat.
Sources & picture credits
Guide text is original retrogameindex writing, checked against Bulbapedia and the game data. Wild Pokémon and encounter chances, items, trainers, rematch teams, gifts, trades and shops come from the pret/pokeemerald decompilation. Maps and sprites © Nintendo / Creatures / GAME FREAK, archived from the Bulbagarden Archives; the Hoenn map is drawn from the game’s own PokéNav map graphics (listed on the image gallery).

