New Mauville Ruby & Sapphire · Dungeon

New Mauville is an underground power plant reached by Surfing east from Route 110. After you beat Norman, Wattson in Mauville City gives you the Basement Key and asks you to shut down its generator. Turn it off and he rewards you with TM24 Thunderbolt.
- Wild Pokémon
- 4
- Items
- 5
- Trainers
- 0
- HMs
- Surf (to reach the entrance from Route 110)
Connects to: Route 110
New Mauville on the Hoenn map
Gift and special Pokémon
Voltorb Lv. 25 · One-off encounter · InsideWild Pokémon
Entrance
| Pokémon | Type | Lv. | Ruby | Sapphire |
|---|---|---|---|---|
Magnemite | ElectricSteel | 22–26 | 50% | 50% |
Voltorb | Electric | 22–26 | 50% | 50% |
Inside
| Pokémon | Type | Lv. | Ruby | Sapphire |
|---|---|---|---|---|
Magnemite | ElectricSteel | 22–26 | 49% | 49% |
Voltorb | Electric | 22–26 | 49% | 49% |
Magneton | ElectricSteel | 26 | 1% | 1% |
Electrode | Electric | 26 | 1% | 1% |
Chances are the game’s encounter slots for each version (grass 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). A dash means the Pokémon does not appear in that version here. Version exclusives · Where to find every Pokémon.
Items
| Item | How |
|---|---|
| Ultra Ball | Item ball |
| Escape Rope | Item ball |
| Thunderstone | Item ball |
| Full Heal | Item ball |
| Parlyz Heal | Item ball |
Hidden items can be found with the Itemfinder.
Tips
- Wattson gives you the Basement Key in Mauville City after you defeat Norman.
- Some item balls are Voltorb (L25) in disguise; save before grabbing items.
- Magnemite and Voltorb are almost the only wild Pokémon; Magneton and Electrode appear at 1% each inside.
- Pick up the Thunderstone, Ultra Ball and Full Heal along the way.
- Report back to Wattson after shutting down the generator to receive TM24 Thunderbolt.
Walkthrough: Part 8: The Desert, Norman and Surf
More maps
FAQ
How do I get into New Mauville?
Get the Basement Key from Wattson in Mauville City after beating Norman, then Surf east from Route 110 to the entrance.
What does Wattson give me for New Mauville?
TM24 Thunderbolt, after you turn off the generator.
Can I catch Magneton or Electrode here?
Yes, inside the plant, each at 1% and level 26.
What Pokémon can you catch in New Mauville in Ruby and Sapphire?
4 species: Magnemite, Voltorb, Magneton, Electrode.
Sources & picture credits
- New Mauville (Bulbapedia)
- pret/pokeruby (decompiled game data)
- Map: New_Mauville_RSE.png
- Map: New_Mauville_entrance_RS.png
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/pokeruby decompilation (pret/pokeruby 5784633ce4). 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.




