Phase 11 section
Pokemon FireRed and LeafGreen Birth Island and Deoxys Walkthrough
Birth Island and Deoxys section for the FireRed and LeafGreen walkthrough with source-backed wild Pokemon, trainers, items, hidden items, bosses, and route notes.
Use the AuroraTicket event route, solve the triangle puzzle, and battle Deoxys. This page is a standalone section for Phase 11: Event Islands + Completion, with FireRed/LeafGreen source data for encounters, trainers, items, hidden items, and boss routing.
Source maps
Birth Island Harbor and Birth Island Exterior.
Route plan
This is event-only content. The puzzle requires touching the triangle in the shortest path repeatedly until Deoxys appears.
Route Notes
- The event script sets Deoxys at Lv. 30. FireRed displays Attack Forme and LeafGreen displays Defense Forme, while normal retail saves cannot reach the island without AuroraTicket distribution or equivalent access.
Wild Pokemon
| Area / subarea | Game | Method | Pokemon | Level | Odds | Condition / requirement |
|---|---|---|---|---|---|---|
| Birth Island | Event-only | AuroraTicket static |  Deoxys | Lv. 30 | Static | Solve the triangle puzzle. FireRed displays Attack Forme; LeafGreen displays Defense Forme. Not normally reachable without the event ticket. |
| Birth Island Exterior | FireRed/LeafGreen | Static encounter | Deoxys | Lv. 30 | Static | One-time scripted encounter in Birth Island Exterior. |
Trainers
No regular trainers are sourced for this section.
Items And Hidden Items
No visible, hidden, or scripted item rows are sourced for this section.
Boss Strategy
No major boss card is assigned to this section.
Completion Checklist
- Clear the route plan for Birth Island and Deoxys before moving to the next section.
- Check the wild table for FireRed/LeafGreen version splits, rod methods, Surf, Rock Smash, static Pokemon, gifts, trades, and event-only rows when present.
- Defeat or intentionally skip optional trainers; use VS Seeker notes where rematches are available.
- Sweep visible and hidden item rows, including key items, HMs, TMs, berries, fossils, and scripted gifts.
- Review boss cards and heal before any Rival, Gym Leader, Rocket Admin, Elite Four, Champion, or legendary encounter listed above.
Sources
pret/pokefirered:src/data/wild_encounters.json,src/data/trainers.h,src/data/trainer_parties.h,data/maps/*/map.json,data/maps/*/scripts.inc,data/scripts/item_ball_scripts.inc, andgraphics/trainers/front_pics.- Encounter odds use the FR/LG slot rates: land 20/20/10/10/10/10/5/5/4/4/1/1, Surf and Rock Smash 60/30/5/4/1, Old Rod 70/30, Good Rod 60/20/20, and Super Rod 40/40/15/4/1.
- Generation III mechanics apply throughout: abilities, natures, held items, double battles, and post-game National Dex data are active in these remakes.