Phase 10 section
Pokemon Emerald Regi Trio Walkthrough
Regi Trio section for the Pokemon Emerald walkthrough with wild Pokemon, trainers, items, coordinates, requirements, and strategy notes.
Regi Trio is a dedicated section page for Phase 10: Post-Game + Battle Frontier. Use Relicanth, Wailord, Dig, Fly, and timing/puzzle inputs to open and catch Regirock, Regice, and Registeel.
Phase 10 asset set
Post-Game + Battle Frontier: S.S. Tidal, Battle Frontier, Frontier Brains, Steven, roaming Lati, and post-game dungeons.
Route Plan
Primary source maps covered here: Sealed Chamber Outer Room, Sealed Chamber Inner Room, Underwater Sealed Chamber, Desert Ruins, Island Cave, Ancient Tomb. 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
No mandatory trainer battles are sourced for this section.
Items
No visible, hidden, or scripted item pickups are sourced for this section.
Completion Checklist
- Clear the main objective: Use Relicanth, Wailord, Dig, Fly, and timing/puzzle inputs to open and catch Regirock, Regice, and Registeel.
- 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.
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.