Phase 3 section
Pokemon Emerald Mauville Gym - Wattson Walkthrough
Dynamo Badge Mauville Gym - Wattson section for the Pokemon Emerald walkthrough with wild Pokemon, trainers, items, coordinates, requirements, and strategy notes.
Mauville Gym - Wattson is a dedicated section page for Phase 3: Dynamo Badge. Solve the switch puzzle and bring Ground or strong neutral damage for Wattson's Electric team.
Trainer Art
Key Emerald trainers for this section are shown here so boss, rival, villain, and Frontier pages have the right character context.
Route Plan
Primary source maps covered here: Mauville City Gym. Follow this page as its own checklist, then return to the phase index when the wild Pokemon, trainers, items, and boss notes are complete.
Wild Pokemon
No wild Pokemon encounter table is sourced for this section.
Trainers
| Order | Area | Trainer | Team | Reward | Notes |
|---|---|---|---|---|---|
| 1 | Mauville City Gym | Guitarist Kirk | 544 | Story/route battle. | |
| 2 | Mauville City Gym | Guitarist Shawn | 544 | Story/route battle. | |
| 3 | Mauville City Gym | Youngster Ben | 272 | Story/route battle. | |
| 4 | Mauville City Gym | Battle Girl Vivian | 408 | Story/route battle. | |
| 5 | Mauville City Gym | Bug Maniac Angelo | 1020 | Story/route battle. | |
| 6 | Mauville City Gym | Leader Wattson | 2400 | May have Match Call/rematch data later. |
Items
| Item | Type | Location | Requirement / flag context |
|---|---|---|---|
| TM34 Shock Wave | Gift / reward | Mauville City Gym, Gym Leader reward | After defeating the Gym Leader |
Boss Strategy
Leader Wattson
Reward: 2400. Marshtomp is the smoothest counter. Otherwise bring Geodude, Makuhita pressure, or careful status support for Magneton and Manectric.
| Pokemon | Level | Held item | Moves |
|---|---|---|---|
 Voltorb | Lv. 20 | - | Rollout, Spark, Self Destruct, Shock Wave |
 Electrike | Lv. 20 | - | Shock Wave, Leer, Quick Attack, Howl |
 Magneton | Lv. 22 | - | Supersonic, Shock Wave, Thunder Wave, Sonic Boom |
 Manectric | Lv. 24 | Sitrus Berry | Quick Attack, Thunder Wave, Shock Wave, Howl |
Completion Checklist
- Clear the main objective: Solve the switch puzzle and bring Ground or strong neutral damage for Wattson's Electric team.
- Review every wild Pokemon method listed for the section.
- Fight or deliberately skip every trainer listed in route order.
- Collect visible items, hidden items, and scripted rewards you care about before moving on.
- Save and heal before the boss battle.
Source Notes
- Source of truth: pret/pokeemerald
wild_encounters.json, mapmap.jsonobject/background events, mapscripts.inc,trainers.h, andtrainer_parties.h. - Encounter odds are aggregated by species and method from Emerald slot rates. Most rows are marked Any time because Emerald has no normal day/night wild encounter split.
- Pokemon table sprites use locally cached Emerald front sprites from
/guides/pokemon-emerald-pokemon-sprites.json. - Trainer art on this page uses the local Emerald trainer manifest and reused Hoenn character art where Emerald-specific artwork is not available.