Phase 3 section
Pokémon Platinum Hearthome Gym — Fantina Walkthrough
Relic Badge Use the flashlight clues to reach Fantina and claim the third badge. Exact Platinum encounters, every sourced trainer, items, hidden-item directions, puzzle notes, boss data, and completion checks.
Phase 3Relic Badge Cycling Road, Wayward Cave, Hearthome, Fantina, and the Platinum Gym order. 03 / 12 
Use the flashlight clues to reach Fantina and claim the third badge. Every table on this page is joined to the named Platinum map, encounter, trainer, item, and script data; Diamond/Pearl rows are not substituted.
Source maps
Hearthome City Gym Entrance Room, Hearthome City Gym Trainer Room 1, Hearthome City Gym Trainer Room 2, Hearthome City Gym Leader Room.
Platinum discipline
Morning, day, night, daily, Radar, swarm, dual-slot, static, gift, and event rows remain distinct when their requirements differ.
Route Plan
Read each blue-symbol tile, enter the matching red-symbol door, fight all side-room trainers for completion, then challenge Fantina.
Exact pret map constants (4)
MAP_HEADER_HEARTHOME_CITY_GYM_ENTRANCE_ROOM · MAP_HEADER_HEARTHOME_CITY_GYM_TRAINER_ROOM_1 · MAP_HEADER_HEARTHOME_CITY_GYM_TRAINER_ROOM_2 · MAP_HEADER_HEARTHOME_CITY_GYM_LEADER_ROOM
Wild Pokémon
This subarea has no random wild table or source-scripted Pokémon encounter. Gifts and event access are listed when applicable.
Trainers
Route order follows event-object order, then source-script order. Teams show held items and moves only where Platinum explicitly defines them. Rewards use the engine formula: highest party level × 4 × trainer-class multiplier.
| Trainer | Route order / placement | Full team | Reward | Optional / rematch note |
|---|---|---|---|---|
 Youngster DonnySource trainer ID 357 | Hearthome City Gym Trainer Room 1 • order 1 at source tile (12, 7) | ₽352 | One-time field/story battle unless the Vs. Seeker supplies a separate source trainer variant. | |
 Lass MollySource trainer ID 325 | Hearthome City Gym Trainer Room 1 • order 2 at source tile (4, 7) |
| ₽368 | One-time field/story battle unless the Vs. Seeker supplies a separate source trainer variant. |
 School Kid Female MackenzieSource trainer ID 343 | Hearthome City Gym Trainer Room 2 • order 1 at source tile (4, 15) | ₽420 | One-time field/story battle unless the Vs. Seeker supplies a separate source trainer variant. | |
 Ace Trainer Male AllenSource trainer ID 280 | Hearthome City Gym Trainer Room 2 • order 2 at source tile (18, 7) | ₽1,440 | One-time field/story battle unless the Vs. Seeker supplies a separate source trainer variant. | |
 School Kid Male ChanceSource trainer ID 340 | Hearthome City Gym Trainer Room 2 • order 3 at source tile (21, 17) |
| ₽460 | One-time field/story battle unless the Vs. Seeker supplies a separate source trainer variant. |
 Ace Trainer Female CatherineSource trainer ID 284 | Hearthome City Gym Trainer Room 2 • order 4 at source tile (11, 9) |
| ₽1,440 | One-time field/story battle unless the Vs. Seeker supplies a separate source trainer variant. |
 Leader Fantina FantinaSource trainer ID 318 | Hearthome City Gym Leader Room • scripted battle | ₽3,120 | One-time field/story battle unless the Vs. Seeker supplies a separate source trainer variant. |
Items And Services
No visible item ball, initialized berry patch, or curated one-time service is assigned to these exact source maps.
Hidden Items
No type-2 hidden-item event is placed on these exact Platinum source maps.
Puzzles, Warps, And Switches
- Choosing a wrong symbol door drops the player back to the room's start. The correct shape is lit on the floor by the flashlight beam.
Boss Strategy And Partners
Leader Fantina FantinaSource trainer ID 318Exact Platinum team
Duskull Lv. 24Held: NoneMoves: Will O Wisp / Pursuit / Shadow Sneak / Future Sight
Haunter Lv. 24Held: NoneMoves: Shadow Claw / Sucker Punch / Hypnosis / Confuse Ray
Mismagius Lv. 26Held: Sitrus BerryMoves: Shadow Ball / Psybeam / Magical Leaf / Confuse Ray
Strategy: Dark and Ghost damage are the cleanest answers. Carry status healing and avoid giving Mismagius free setup turns.
Completion Checklist
- Visit all 4 mapped subareas listed in the source constants.
- Record the 0 applicable wild, static, gift, trade, or event encounter rows across the per-area tables.
- Defeat or intentionally defer all 7 source-placed trainer battles.
- Collect or account for 0 visible items, berry patches, gifts, and services plus 0 Dowsing Machine items.
- Complete the route, story, puzzle, boss, partner, and event conditions above before following the next-section link.
Sources And Validation
- Primary source:
pret/pokeplatinumcommit7c0aa10b6a6aa09d8824e08bd8a36f6fc8b7ad8d. - Source layers:
res/field/encounters,res/field/events,res/field/scripts,res/trainers, personal held-item data, map headers, hidden-item table, berry initializer, trades, tutors, and Frontier sets. - Machine-readable validation report records page, map, trainer, item, encounter, asset, and source invariants.
Dex quick links