Phase 10 section
Pokemon Diamond and Pearl Fight Area and Postgame Barry Rematches Walkthrough
Sail from Snowpoint to the Battle Zone, meet Buck, unlock the island hub, and challenge Barry's escalating weekend teams. Exact Diamond/Pearl encounters, every sourced trainer, visible and hidden items, puzzle notes, boss teams, and completion checks.
Sail from Snowpoint to the Battle Zone, meet Buck, unlock the island hub, and challenge Barry's escalating weekend teams. This standalone section joins the route plan to the original Diamond/Pearl map, encounter, trainer, item, and script data; Platinum tables are not substituted.
Source maps
Fight Area, Fight Area Pokémon Center, Fight Area Pokémon Center 2F, Fight Area Poké Mart, Fight Area Battle Park Gatehouse, Fight Area Route 225 Gatehouse, Fight Area Southeast House, Fight Area Southwest House, Fight Area Unused 1, and Fight Area Pokémon Center B1F.
Version discipline
Rows merge only when Diamond and Pearl are identical, and each row carries D/P game markers. Version-exclusive species, mascot encounters, swarms, Radar slots, and GBA insertion slots keep their own labeled rows.
Route Plan
Sail from Snowpoint; tour Fight Area and collect gifts; meet Barry and Buck; open the Battle Park gate; return on Saturday or Sunday after Stark Mountain for Barry's rematch; clear the Elite Four repeatedly if pursuing his highest-level team.
- Snowpoint's ferry to Fight Area becomes available after the first Hall of Fame entry. Fight Area, Battle Park, Battle Tower, and the BP exchange can be used before obtaining the National Dex; the National Dex opens the exits toward Routes 225-230 and the rest of the island.
- Barry's postgame rematch has three starter branches at two strength tiers. List all six IDs but explain the progression rather than presenting six simultaneous battles.
- Barry appears on Saturday or Sunday after the Stark Mountain story. His lower rematch tier is used below 20 Pokemon League victories; at 20 or more Hall of Fame clears the higher IDs activate and reach Lv. 74.
Exact pret map constants (10)
MAP_FIGHT_AREA MAP_FIGHT_AREA_POKECENTER MAP_FIGHT_AREA_POKECENTER_2F MAP_FIGHT_AREA_POKEMART MAP_FIGHT_AREA_BATTLE_PARK_GATEHOUSE MAP_FIGHT_AREA_ROUTE_225_GATEHOUSE MAP_FIGHT_AREA_SOUTHEAST_HOUSE MAP_FIGHT_AREA_SOUTHWEST_HOUSE MAP_FIGHT_AREA_UNUSED_1 MAP_FIGHT_AREA_POKECENTER_B1F
Wild Pokémon
No random wild encounter archive or curated static/gift row applies to this section. This is expected for some buildings, story rooms, and Gym interiors.
Trainers
Field order follows the map's object-event order. Full teams include explicit held items and moves when trdata defines them; cash rewards use the in-engine final-party-slot level and trainer-class multiplier formula.
| Trainer | Route order / placement | Full team | Reward | Access requirement | Optional / rematch note |
|---|---|---|---|---|---|
 Pokémon Trainer BarryPokémon Trainer Barry • source ID 837 | Fight Area • scripted |
| ₽6,400 | Hall of Fame required; sail from Snowpoint to Fight Area, then enter Battle Park. The National Dex is not required for the Fight Area hub, Battle Park, Battle Tower, or BP exchange. | Major or story battle; not a VS Seeker rematch row. |
| Pokémon Trainer BarryPokémon Trainer Barry • source ID 840 | Fight Area • scripted |
| ₽7,400 | Hall of Fame required; sail from Snowpoint to Fight Area, then enter Battle Park. The National Dex is not required for the Fight Area hub, Battle Park, Battle Tower, or BP exchange. | Major or story battle; not a VS Seeker rematch row. |
| Pokémon Trainer BarryPokémon Trainer Barry • source ID 838 | Fight Area • scripted |
| ₽6,400 | Hall of Fame required; sail from Snowpoint to Fight Area, then enter Battle Park. The National Dex is not required for the Fight Area hub, Battle Park, Battle Tower, or BP exchange. | Major or story battle; not a VS Seeker rematch row. |
| Pokémon Trainer BarryPokémon Trainer Barry • source ID 841 | Fight Area • scripted |
| ₽7,400 | Hall of Fame required; sail from Snowpoint to Fight Area, then enter Battle Park. The National Dex is not required for the Fight Area hub, Battle Park, Battle Tower, or BP exchange. | Major or story battle; not a VS Seeker rematch row. |
| Pokémon Trainer BarryPokémon Trainer Barry • source ID 839 | Fight Area • scripted |
| ₽6,400 | Hall of Fame required; sail from Snowpoint to Fight Area, then enter Battle Park. The National Dex is not required for the Fight Area hub, Battle Park, Battle Tower, or BP exchange. | Major or story battle; not a VS Seeker rematch row. |
| Pokémon Trainer BarryPokémon Trainer Barry • source ID 842 | Fight Area • scripted |
| ₽7,400 | Hall of Fame required; sail from Snowpoint to Fight Area, then enter Battle Park. The National Dex is not required for the Fight Area hub, Battle Park, Battle Tower, or BP exchange. | Major or story battle; not a VS Seeker rematch row. |
Items
| Item | Version | Type | Area / exact direction | Coordinate / script | Requirement | Source |
|---|---|---|---|---|---|---|
| Pomeg Berry | Diamond / Pearl | Berry tree | Fight Area: Harvest berry patch 90 in the central part of Fight Area, 8 tiles west and 2 tiles north of the Fight Area Pokémon Center doorway or transition. The plot can be replanted after the initial harvest. | (639, 429) | Hall of Fame required; sail from Snowpoint to Fight Area, then enter Battle Park. The National Dex is not required for the Fight Area hub, Battle Park, Battle Tower, or BP exchange. | berry table ov52_021D76F8, patch 90 |
| Pomeg Berry | Diamond / Pearl | Berry tree | Fight Area: Harvest berry patch 91 in the central part of Fight Area, 7 tiles west and 2 tiles north of the Fight Area Pokémon Center doorway or transition. The plot can be replanted after the initial harvest. | (640, 429) | Hall of Fame required; sail from Snowpoint to Fight Area, then enter Battle Park. The National Dex is not required for the Fight Area hub, Battle Park, Battle Tower, or BP exchange. | berry table ov52_021D76F8, patch 91 |
| 2× Hondew Berry | Diamond / Pearl | Berry tree | Fight Area: Harvest berry patch 92 in the central part of Fight Area, 6 tiles west and 2 tiles north of the Fight Area Pokémon Center doorway or transition. The plot can be replanted after the initial harvest. | (641, 429) | Hall of Fame required; sail from Snowpoint to Fight Area, then enter Battle Park. The National Dex is not required for the Fight Area hub, Battle Park, Battle Tower, or BP exchange. | berry table ov52_021D76F8, patch 92 |
| 2× Hondew Berry | Diamond / Pearl | Berry tree | Fight Area: Harvest berry patch 93 in the central part of Fight Area, 5 tiles west and 2 tiles north of the Fight Area Pokémon Center doorway or transition. The plot can be replanted after the initial harvest. | (642, 429) | Hall of Fame required; sail from Snowpoint to Fight Area, then enter Battle Park. The National Dex is not required for the Fight Area hub, Battle Park, Battle Tower, or BP exchange. | berry table ov52_021D76F8, patch 93 |
| Super Rod | Diamond / Pearl | NPC / scripted gift | Fight Area: Speak to the fisherman near Fight Area's north exit and answer yes to his fishing question. | NPC (633, 423); script 8 | Reach the Fight Area after entering the Hall of Fame. | script bank 195 |
| Scope Lens | Diamond / Pearl | NPC / scripted gift | Fight Area Poké Mart: Speak to the item-giving NPC in the southwestern part of Fight Area Poké Mart, 1 tile west and 2 tiles north of the Fight Area doorway or transition. | NPC (2, 9); script 3 | Hall of Fame required; sail from Snowpoint to Fight Area, then enter Battle Park. The National Dex is not required for the Fight Area hub, Battle Park, Battle Tower, or BP exchange. | script bank 196 |
| Point Card | Diamond / Pearl | NPC / scripted gift | Fight Area Battle Park Gatehouse: Receive it from the attendant while entering the Battle Park through its Fight Area gatehouse. | script 1 | Hall of Fame only; sail from Snowpoint to Fight Area and enter Battle Park. The National Dex is not required. | script bank 200 |
Hidden Items
No type-2 hidden-item event is present in the source maps assigned to this section.
Puzzles, Warps, And Switches
- The Fight Area is the island transport hub: west leads to Route 225 and the survival route, while the north gate leads to Battle Park.
Boss Strategy And Partners
Pokémon Trainer BarryPokémon Trainer Barry • source ID 837Full team
StaraptorClose Combat / Aerial Ace / Steel Wing / U Turn
FloatzelAqua Jet / Crunch / Ice Fang / Brick Break
HeracrossMegahorn / Close Combat / Night Slash / Rock Slide
RapidashFire Blast / Sunny Day / Bounce / Will O Wisp
SnorlaxBody Slam / Crunch / Earthquake / Rest
TorterraLeaf Storm / Earthquake / Crunch / Leech Seed
Danger notes
Barry's starter branch changes with the player's choice; later teams also swap the complementary Roserade/Floatzel/Rapidash slot.
Practical counters
Read the full branch team rather than countering only the starter. Rock or Electric covers the bird, while the remaining slots need broad Water, Grass, Fire, Flying, or Fighting coverage.
Pokémon Trainer BarryPokémon Trainer Barry • source ID 838Full team
- StaraptorClose Combat / Aerial Ace / Steel Wing / U Turn
- FloatzelAqua Jet / Crunch / Ice Fang / Brick Break
- HeracrossMegahorn / Close Combat / Night Slash / Rock Slide
RoseradePoison Jab / Giga Drain / Shadow Ball / Grass Whistle- SnorlaxBody Slam / Crunch / Earthquake / Rest
InfernapeFlamethrower / Focus Blast / Shadow Claw / Aerial Ace
Danger notes
Barry's starter branch changes with the player's choice; later teams also swap the complementary Roserade/Floatzel/Rapidash slot.
Practical counters
Read the full branch team rather than countering only the starter. Rock or Electric covers the bird, while the remaining slots need broad Water, Grass, Fire, Flying, or Fighting coverage.
Pokémon Trainer BarryPokémon Trainer Barry • source ID 839Full team
- StaraptorClose Combat / Aerial Ace / Steel Wing / U Turn
- RoseradePoison Jab / Giga Drain / Shadow Ball / Grass Whistle
- HeracrossMegahorn / Close Combat / Night Slash / Rock Slide
- RapidashFire Blast / Sunny Day / Bounce / Will O Wisp
- SnorlaxBody Slam / Crunch / Earthquake / Rest
EmpoleonHydro Pump / Metal Claw / Drill Peck / Shadow Claw
Danger notes
Barry's starter branch changes with the player's choice; later teams also swap the complementary Roserade/Floatzel/Rapidash slot.
Practical counters
Read the full branch team rather than countering only the starter. Rock or Electric covers the bird, while the remaining slots need broad Water, Grass, Fire, Flying, or Fighting coverage.
Pokémon Trainer BarryPokémon Trainer Barry • source ID 840Full team
- StaraptorClose Combat / Aerial Ace / Steel Wing / U Turn
- FloatzelAqua Jet / Crunch / Ice Fang / Brick Break
- HeracrossMegahorn / Close Combat / Night Slash / Rock Slide
- RapidashFire Blast / Sunny Day / Megahorn / Will O Wisp
- SnorlaxGiga Impact / Crunch / Earthquake / Brick Break
- TorterraLeaf Storm / Earthquake / Crunch / Stone Edge
Danger notes
Barry's starter branch changes with the player's choice; later teams also swap the complementary Roserade/Floatzel/Rapidash slot.
Practical counters
Read the full branch team rather than countering only the starter. Rock or Electric covers the bird, while the remaining slots need broad Water, Grass, Fire, Flying, or Fighting coverage.
Pokémon Trainer BarryPokémon Trainer Barry • source ID 841Full team
- StaraptorClose Combat / Aerial Ace / Steel Wing / U Turn
- FloatzelAqua Jet / Crunch / Ice Fang / Brick Break
- HeracrossMegahorn / Close Combat / Night Slash / Rock Slide
- RoseradeSludge Bomb / Giga Drain / Shadow Ball / Grass Whistle
- SnorlaxGiga Impact / Crunch / Earthquake / Brick Break
- InfernapeFlare Blitz / Focus Blast / Shadow Claw / Aerial Ace
Danger notes
Barry's starter branch changes with the player's choice; later teams also swap the complementary Roserade/Floatzel/Rapidash slot.
Practical counters
Read the full branch team rather than countering only the starter. Rock or Electric covers the bird, while the remaining slots need broad Water, Grass, Fire, Flying, or Fighting coverage.
Pokémon Trainer BarryPokémon Trainer Barry • source ID 842Full team
- StaraptorClose Combat / Aerial Ace / Steel Wing / U Turn
- RoseradeSludge Bomb / Giga Drain / Shadow Ball / Grass Whistle
- HeracrossMegahorn / Close Combat / Night Slash / Rock Slide
- RapidashFire Blast / Sunny Day / Megahorn / Will O Wisp
- SnorlaxGiga Impact / Crunch / Earthquake / Brick Break
- EmpoleonHydro Pump / Metal Claw / Drill Peck / Ice Beam
Danger notes
Barry's starter branch changes with the player's choice; later teams also swap the complementary Roserade/Floatzel/Rapidash slot.
Practical counters
Read the full branch team rather than countering only the starter. Rock or Electric covers the bird, while the remaining slots need broad Water, Grass, Fire, Flying, or Fighting coverage.
Completion Checklist
- Complete the currently reachable part of this route plan: Sail from Snowpoint; tour Fight Area and collect gifts; meet Barry and Buck; open the Battle Park gate; return on Saturday or Sunday after Stark Mountain for Barry's rematch; clear the Elite Four repeatedly if pursuing his highest-level team.
- Review all 0 encounter rows across the per-area tables, including game markers, method band, time-of-day rates, levels, and each conditional requirement; mark conditional rows for their stated revisit.
- Defeat or deliberately skip every currently reachable trainer row; leave HM-, story-, or National-Dex-gated rows checked only after their access requirement is met.
- Collect currently reachable visible/scripted items and berry trees, use the Dowsing Machine for reachable hidden rows, and retain every explicitly gated row for the named cleanup visit.
- Resolve every currently available puzzle note, boss branch, and partner scene before opening the next section.
Sources And Validation
pret/pokediamondat commit038cccaed5de8f013875bc5d734f912d1de08e0f:map_header.c, D/P encounter archives,trdata.json, zone events, script archives, item tables, and trainer graphics.- Encounter slots were decoded from exact 424-byte D/P members and cross-checked against Gen IV slot behavior; the 0x6C pair is day, morning uses base slots, and 0x74 is night.
- Coordinates remain visible as QA anchors, while each hidden row also provides a plain-English map-region instruction.
- Generation-wide systems that are not tied to a normal map archive—Honey Trees, Great Marsh daily rolls, Trophy Garden, fossils, Pal Park, and event items—are explicitly curated in their dedicated system pages.
Dex quick links