Phase 4 section

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Pokemon Diamond and Pearl Pastoria City, Great Marsh, and Barry Walkthrough

Fen Badge

Tour Pastoria, receive HM05 Defog in the Great Marsh, sample rotating Safari encounters, and defeat Barry at the Gym entrance. Exact Diamond/Pearl encounters, every sourced trainer, visible and hidden items, puzzle notes, boss teams, and completion checks.

Nintendo DS Pokemon Diamond / Pearl Phase 4 Fen Badge Routes 214 and 213, Valor Lakefront, Pastoria City, Great Marsh, and Crasher Wake. 04 / 11 Palkia artwork Dialga artwork
By Damodar Sharma Updated July 9, 2026 Walkthrough

Tour Pastoria, receive HM05 Defog in the Great Marsh, sample rotating Safari encounters, and defeat Barry at the Gym entrance. 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

Pastoria, Pastoria Poké Mart, Pastoria Pokémon Center, Pastoria Pokémon Center 2F, Pastoria Great Marsh Entrance 1F, Pastoria Great Marsh Entrance 2F, Pastoria Southwest House, Pastoria West House, Pastoria Move Tutor House, Pastoria Northwest House, Pastoria Scarf Guy House, Great Marsh Unused, Great Marsh, Pastoria Pokémon Center B1F, Great Marsh Area 1, and Great Marsh Area 2, and 4 more submaps.

Wild / special rows151Trainer rows3Visible / hidden items22 / 7

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

Heal and restock; visit the Move Reminder and scarf house; inspect the Great Marsh binoculars; enter once and collect HM05 immediately; sweep all six areas for items and desired catches; save before approaching the Gym; defeat Barry.

  • The upstairs binoculars show five random area-and-slot samples with replacement from the day's effective grass tables. A preview can show ordinary species as well as the daily replacement, so it helps locate a target but does not guarantee that every daily special appears.
  • Great Marsh uses a step limit and 30 Safari Balls; mud and bait alter catch and flee behavior but cannot guarantee a rare catch.
  • Pastoria's Move Reminder reteaches an eligible level-up move for one Heart Scale per move. This is a paid repeatable service, not a one-time free tutor.
Exact pret map constants (20)

MAP_PASTORIA MAP_PASTORIA_POKEMART MAP_PASTORIA_POKECENTER MAP_PASTORIA_POKECENTER_2F MAP_PASTORIA_GREAT_MARSH_ENTRANCE_1F MAP_PASTORIA_GREAT_MARSH_ENTRANCE_2F MAP_PASTORIA_SOUTHWEST_HOUSE MAP_PASTORIA_WEST_HOUSE MAP_PASTORIA_MOVE_TUTOR_HOUSE MAP_PASTORIA_NORTHWEST_HOUSE MAP_PASTORIA_SCARF_GUY_HOUSE MAP_GREAT_MARSH_UNUSED MAP_GREAT_MARSH MAP_PASTORIA_POKECENTER_B1F MAP_GREAT_MARSH_AREA_1 MAP_GREAT_MARSH_AREA_2 MAP_GREAT_MARSH_AREA_3 MAP_GREAT_MARSH_AREA_4 MAP_GREAT_MARSH_AREA_5 MAP_GREAT_MARSH_AREA_6

Wild Pokémon

Each area below has its own table, split by encounter method. Standard grass and cave rates merge every base slot for a species and are shown per time window: morning 04:00-09:59, day 10:00-19:59, night 20:00-03:59. Swarm, Poké Radar, and GBA dual-slot replacements keep their own labeled rows. Underlying slot odds: grass 20/20/10/10/10/10/5/5/4/4/1/1; Surf and Old Rod 60/30/5/4/1; Good and Super Rod 40/40/15/4/1.

Great Marsh Area 1

Great Marsh Area 1 wild Pokémon by method, games, levels, time-of-day rates, and requirements
PokémonGamesLevelsRateRequirement / notes
MorningDayNight
Grass / cave floor
Bibarel artworkBibarelDP2520%
Wooper artworkWooperDP2420%
Marill artworkMarillDP2510%
Quagsire artworkQuagsireDP2510%
Budew artworkBudewDP2410%10%
Starly artworkStarlyDP2610%10%
Hoothoot artworkHoothootDP2410%
Noctowl artworkNoctowlDP2610%
Psyduck artworkPsyduckDP24 or 268%Rate counts base slots temporarily replaced by GBA dual-slot insertions.
Azurill artworkAzurillDP241%
Bidoof artworkBidoofDP261%
Dual-slot GBA insertion (post-National Dex)
Arbok artworkArbokDP24 or 268%National Dex plus Pokémon FireRed inserted in the Nintendo DS GBA slot; replaces grass slots 8-9.
Surfing
Wooper artworkWooperDP20-3060%
Marill artworkMarillDP20-3030%
Psyduck artworkPsyduckDP20-405%
Quagsire artworkQuagsireDP20-405%
Fishing — Old Rod
Magikarp artworkMagikarpDP3-10100%
Fishing — Good Rod
Magikarp artworkMagikarpDP10-2555%
Barboach artworkBarboachDP15-2040%
Gyarados artworkGyaradosDP15-305%
Fishing — Super Rod
Carvanha artworkCarvanhaDP15-3045%
Whiscash artworkWhiscashDP30-5540%
Gyarados artworkGyaradosDP40-5515%

Great Marsh Area 2

Great Marsh Area 2 wild Pokémon by method, games, levels, time-of-day rates, and requirements
PokémonGamesLevelsRateRequirement / notes
MorningDayNight
Grass / cave floor
Bibarel artworkBibarelDP2520%
Wooper artworkWooperDP2420%
Marill artworkMarillDP2510%
Quagsire artworkQuagsireDP2510%
Budew artworkBudewDP2410%10%
Starly artworkStarlyDP2610%10%
Hoothoot artworkHoothootDP2410%
Noctowl artworkNoctowlDP2610%
Psyduck artworkPsyduckDP24 or 268%Rate counts base slots temporarily replaced by GBA dual-slot insertions.
Azurill artworkAzurillDP241%
Bidoof artworkBidoofDP261%
Dual-slot GBA insertion (post-National Dex)
Arbok artworkArbokDP24 or 268%National Dex plus Pokémon FireRed inserted in the Nintendo DS GBA slot; replaces grass slots 8-9.
Surfing
Wooper artworkWooperDP20-3060%
Marill artworkMarillDP20-3030%
Psyduck artworkPsyduckDP20-405%
Quagsire artworkQuagsireDP20-405%
Fishing — Old Rod
Magikarp artworkMagikarpDP3-10100%
Fishing — Good Rod
Magikarp artworkMagikarpDP10-2555%
Barboach artworkBarboachDP15-2040%
Gyarados artworkGyaradosDP15-305%
Fishing — Super Rod
Carvanha artworkCarvanhaDP15-3045%
Whiscash artworkWhiscashDP30-5540%
Gyarados artworkGyaradosDP40-5515%

Great Marsh Area 3

Great Marsh Area 3 wild Pokémon by method, games, levels, time-of-day rates, and requirements
PokémonGamesLevelsRateRequirement / notes
MorningDayNight
Grass / cave floor
Bibarel artworkBibarelDP2320%
Wooper artworkWooperDP2220%
Hoothoot artworkHoothootDP22 or 2420%
Marill artworkMarillDP2310%
Quagsire artworkQuagsireDP2310%
Budew artworkBudewDP2210%10%
Starly artworkStarlyDP2410%10%
Psyduck artworkPsyduckDP22 or 248%Rate counts base slots temporarily replaced by GBA dual-slot insertions.
Azurill artworkAzurillDP221%
Bidoof artworkBidoofDP241%
Dual-slot GBA insertion (post-National Dex)
Arbok artworkArbokDP22 or 248%National Dex plus Pokémon FireRed inserted in the Nintendo DS GBA slot; replaces grass slots 8-9.
Surfing
Wooper artworkWooperDP20-3060%
Marill artworkMarillDP20-3030%
Psyduck artworkPsyduckDP20-405%
Quagsire artworkQuagsireDP20-405%
Fishing — Old Rod
Magikarp artworkMagikarpDP3-10100%
Fishing — Good Rod
Magikarp artworkMagikarpDP10-2555%
Barboach artworkBarboachDP15-2040%
Gyarados artworkGyaradosDP15-305%
Fishing — Super Rod
Carvanha artworkCarvanhaDP15-3045%
Whiscash artworkWhiscashDP30-5540%
Gyarados artworkGyaradosDP40-5515%

Great Marsh Area 4

Great Marsh Area 4 wild Pokémon by method, games, levels, time-of-day rates, and requirements
PokémonGamesLevelsRateRequirement / notes
MorningDayNight
Grass / cave floor
Bibarel artworkBibarelDP2320%
Wooper artworkWooperDP2220%
Hoothoot artworkHoothootDP22 or 2420%
Marill artworkMarillDP2310%
Quagsire artworkQuagsireDP2310%
Budew artworkBudewDP2210%10%
Starly artworkStarlyDP2410%10%
Psyduck artworkPsyduckDP22 or 248%Rate counts base slots temporarily replaced by GBA dual-slot insertions.
Azurill artworkAzurillDP221%
Bidoof artworkBidoofDP241%
Dual-slot GBA insertion (post-National Dex)
Arbok artworkArbokDP22 or 248%National Dex plus Pokémon FireRed inserted in the Nintendo DS GBA slot; replaces grass slots 8-9.
Surfing
Wooper artworkWooperDP20-3060%
Marill artworkMarillDP20-3030%
Psyduck artworkPsyduckDP20-405%
Quagsire artworkQuagsireDP20-405%
Fishing — Old Rod
Magikarp artworkMagikarpDP3-10100%
Fishing — Good Rod
Magikarp artworkMagikarpDP10-2555%
Barboach artworkBarboachDP15-2040%
Gyarados artworkGyaradosDP15-305%
Fishing — Super Rod
Carvanha artworkCarvanhaDP15-3045%
Whiscash artworkWhiscashDP30-5540%
Gyarados artworkGyaradosDP40-5515%

Great Marsh Area 5

Great Marsh Area 5 wild Pokémon by method, games, levels, time-of-day rates, and requirements
PokémonGamesLevelsRateRequirement / notes
MorningDayNight
Grass / cave floor
Bibarel artworkBibarelDP2120%
Wooper artworkWooperDP2020%
Hoothoot artworkHoothootDP20 or 2220%
Marill artworkMarillDP2110%
Quagsire artworkQuagsireDP2110%
Budew artworkBudewDP2010%10%
Starly artworkStarlyDP2210%10%
Azurill artworkAzurillDP205%Rate counts base slots temporarily replaced by GBA dual-slot insertions.
Bidoof artworkBidoofDP225%Rate counts base slots temporarily replaced by GBA dual-slot insertions.
Dual-slot GBA insertion (post-National Dex)
Arbok artworkArbokDP20 or 228%National Dex plus Pokémon FireRed inserted in the Nintendo DS GBA slot; replaces grass slots 8-9.

Great Marsh Area 6

Great Marsh Area 6 wild Pokémon by method, games, levels, time-of-day rates, and requirements
PokémonGamesLevelsRateRequirement / notes
MorningDayNight
Grass / cave floor
Bibarel artworkBibarelDP2120%
Wooper artworkWooperDP2020%
Hoothoot artworkHoothootDP20 or 2220%
Marill artworkMarillDP2110%
Quagsire artworkQuagsireDP2110%
Budew artworkBudewDP2010%10%
Starly artworkStarlyDP2210%10%
Psyduck artworkPsyduckDP20 or 228%Rate counts base slots temporarily replaced by GBA dual-slot insertions.
Azurill artworkAzurillDP201%
Bidoof artworkBidoofDP221%
Dual-slot GBA insertion (post-National Dex)
Arbok artworkArbokDP20 or 228%National Dex plus Pokémon FireRed inserted in the Nintendo DS GBA slot; replaces grass slots 8-9.
Surfing
Wooper artworkWooperDP20-3060%
Marill artworkMarillDP20-3030%
Psyduck artworkPsyduckDP20-405%
Quagsire artworkQuagsireDP20-405%
Fishing — Old Rod
Magikarp artworkMagikarpDP3-10100%
Fishing — Good Rod
Magikarp artworkMagikarpDP10-2555%
Barboach artworkBarboachDP15-2040%
Gyarados artworkGyaradosDP15-305%
Fishing — Super Rod
Carvanha artworkCarvanhaDP15-3045%
Whiscash artworkWhiscashDP30-5540%
Gyarados artworkGyaradosDP40-5515%

Pastoria

Pastoria wild Pokémon by method, games, levels, time-of-day rates, and requirements
PokémonGamesLevelsRateRequirement / notes
MorningDayNight
Surfing
Tentacool artworkTentacoolDP20-3060%
Wingull artworkWingullDP20-3030%
Pelipper artworkPelipperDP20-405%
Tentacruel artworkTentacruelDP20-405%
Fishing — Old Rod
Magikarp artworkMagikarpDP3-10100%
Fishing — Good Rod
Magikarp artworkMagikarpDP10-2555%
Remoraid artworkRemoraidDP10-2545%
Fishing — Super Rod
Gyarados artworkGyaradosDP30-5555%
Octillery artworkOctilleryDP20-5045%

Pastoria City, Great Marsh, and Barry

Pastoria City, Great Marsh, and Barry wild Pokémon by method, games, levels, time-of-day rates, and requirements
PokémonGamesLevelsRateRequirement / notes
MorningDayNight
Great Marsh daily replacement
Croagunk artworkCroagunkDP22 / 24 / 26 by area10% while selected; 15.625% daily selectionPre- or post-National Dex; one saved daily choice per area Replaces grass slots 6-7. Areas 1-2 use Lv. 26, 3-4 Lv. 24, and 5-6 Lv. 22.
Skorupi artworkSkorupiDP22 / 24 / 26 by area10% while selected; 15.625% daily selectionPre- or post-National Dex; one saved daily choice per area Five of 32 selection entries; replaces grass slots 6-7.
Carnivine artworkCarnivineDP22 / 24 / 26 by area10% while selected; 15.625% daily selectionPre- or post-National Dex; one saved daily choice per area Five of 32 selection entries; replaces grass slots 6-7.
Golduck artworkGolduckDP22 / 24 / 26 by area10% while selected; 9.375% daily selectionPre- or post-National Dex; one saved daily choice per area Three of 32 selection entries; replaces grass slots 6-7.
Roselia artworkRoseliaDP22 / 24 / 26 by area10% while selected; 9.375% daily selectionPre- or post-National Dex; one saved daily choice per area Three of 32 selection entries; replaces grass slots 6-7.
Staravia artworkStaraviaDP22 / 24 / 26 by area10% while selected; 9.375% daily selectionPre- or post-National Dex; one saved daily choice per area Three of 32 selection entries; replaces grass slots 6-7.
Azurill artworkAzurillDP22 / 24 / 26 by area10% while selected; 6.25% daily selectionBefore the National Dex Two of 32 pre-National-Dex selection entries; replaces grass slots 6-7.
Wooper artworkWooperDP22 / 24 / 26 by area10% while selected; 6.25% daily selectionBefore the National Dex Two of 32 pre-National-Dex selection entries; replaces grass slots 6-7.
Marill artworkMarillDP22 / 24 / 26 by area10% while selected; 3.125% daily selectionBefore the National Dex One of 32 pre-National-Dex selection entries; replaces grass slots 6-7.
Quagsire artworkQuagsireDP22 / 24 / 26 by area10% while selected; 3.125% daily selectionBefore the National Dex One of 32 pre-National-Dex selection entries; replaces grass slots 6-7.
Bidoof artworkBidoofDP22 / 24 / 26 by area10% while selected; 3.125% daily selectionBefore the National Dex One of 32 pre-National-Dex selection entries; replaces grass slots 6-7.
Bibarel artworkBibarelDP22 / 24 / 26 by area10% while selected; 3.125% daily selectionBefore the National Dex One of 32 pre-National-Dex selection entries; replaces grass slots 6-7.
Toxicroak artworkToxicroakDP22 / 24 / 26 by area10% while selected; 3.125% daily selectionNational Dex obtained One of 32 post-National-Dex selection entries; replaces grass slots 6-7.
Drapion artworkDrapionDP22 / 24 / 26 by area10% while selected; 3.125% daily selectionNational Dex obtained One of 32 post-National-Dex selection entries; replaces grass slots 6-7.
Exeggcute artworkExeggcuteDP22 / 24 / 26 by area10% while selected; 3.125% daily selectionNational Dex obtained One of 32 post-National-Dex selection entries; replaces grass slots 6-7.
Yanma artworkYanmaDP22 / 24 / 26 by area10% while selected; 3.125% daily selectionNational Dex obtained One of 32 post-National-Dex selection entries; replaces grass slots 6-7.
Shroomish artworkShroomishDP22 / 24 / 26 by area10% while selected; 3.125% daily selectionNational Dex obtained One of 32 post-National-Dex selection entries; replaces grass slots 6-7.
Paras artworkParasDP22 / 24 / 26 by area10% while selected; 3.125% daily selectionNational Dex obtained One of 32 post-National-Dex selection entries; replaces grass slots 6-7.
Kangaskhan artworkKangaskhanDP22 / 24 / 26 by area10% while selected; 3.125% daily selectionNational Dex obtained One of 32 post-National-Dex selection entries; replaces grass slots 6-7.
Gulpin artworkGulpinDP22 / 24 / 26 by area10% while selected; 3.125% daily selectionNational Dex obtained One of 32 post-National-Dex selection entries; replaces grass slots 6-7.

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 battles, teams, rewards, and rematch notes
TrainerRoute order / placementFull teamRewardAccess requirementOptional / rematch note
Pokémon Trainer Barry trainer sprite from Pokémon Diamond and Pearl.Pokémon Trainer BarryPokémon Trainer Barry • source ID 473Pastoria • scripted₽2,800Scripted story trigger; complete the local objective described in the route plan.Major or story battle; not a VS Seeker rematch row.
Pokémon Trainer Barry trainer sprite from Pokémon Diamond and Pearl.Pokémon Trainer BarryPokémon Trainer Barry • source ID 474Pastoria • scripted₽2,800Scripted story trigger; complete the local objective described in the route plan.Major or story battle; not a VS Seeker rematch row.
Pokémon Trainer Barry trainer sprite from Pokémon Diamond and Pearl.Pokémon Trainer BarryPokémon Trainer Barry • source ID 475Pastoria • scripted₽2,800Scripted story trigger; complete the local objective described in the route plan.Major or story battle; not a VS Seeker rematch row.

Items

Visible and scripted items with directions and requirements
ItemVersionTypeArea / exact directionCoordinate / scriptRequirementSource
Mystic WaterDiamond / PearlVisible item ballPastoria: Pick up the item ball in the eastern part of Pastoria, 1 tile east and 10 tiles south of the Pastoria Scarf Guy House doorway or transition.(625, 829)Reach this subarea; check the route and puzzle notes for HM, Bicycle, time, or story gates.event bank 119, script 7088
Super RepelDiamond / PearlVisible item ballGreat Marsh Area 1: Pick up the item ball in the northern part of Great Marsh Area 1, 10 tiles west and 6 tiles north of the nearest sign or interactable landmark.(52, 32)Reach this subarea; check the route and puzzle notes for HM, Bicycle, time, or story gates.event bank 480, script 7080
PotionDiamond / PearlVisible item ballGreat Marsh Area 1: Pick up the item ball in the central part of Great Marsh Area 1, 7 tiles west and 1 tile south of the nearest visible NPC.(54, 49)Reach this subarea; check the route and puzzle notes for HM, Bicycle, time, or story gates.event bank 480, script 7081
Great BallDiamond / PearlVisible item ballGreat Marsh Area 2: Pick up the item ball in the northern part of Great Marsh Area 2, 7 tiles east and 2 tiles north of the nearest sign or interactable landmark.(76, 36)Reach this subarea; check the route and puzzle notes for HM, Bicycle, time, or story gates.event bank 481, script 7082
HoneyDiamond / PearlVisible item ballGreat Marsh Area 3: Pick up the item ball in the western part of Great Marsh Area 3, 1 tile east and 4 tiles north of the nearest visible NPC.(35, 71)Reach this subarea; check the route and puzzle notes for HM, Bicycle, time, or story gates.event bank 482, script 7084
Poké BallDiamond / PearlVisible item ballGreat Marsh Area 4: Pick up the item ball in the northern part of Great Marsh Area 4, 2 tiles west and 7 tiles north of the nearest visible NPC.(75, 71)Reach this subarea; check the route and puzzle notes for HM, Bicycle, time, or story gates.event bank 483, script 7085
Super PotionDiamond / PearlVisible item ballGreat Marsh Area 4: Pick up the item ball in the eastern part of Great Marsh Area 4, 3 tiles west and 2 tiles north of the nearest sign or interactable landmark.(90, 77)Reach this subarea; check the route and puzzle notes for HM, Bicycle, time, or story gates.event bank 483, script 7083
AntidoteDiamond / PearlVisible item ballGreat Marsh Area 5: Pick up the item ball in the southwestern part of Great Marsh Area 5, 7 tiles east and 4 tiles south of the nearest sign or interactable landmark.(48, 112)Reach this subarea; check the route and puzzle notes for HM, Bicycle, time, or story gates.event bank 484, script 7086
Parlyz HealDiamond / PearlVisible item ballGreat Marsh Area 6: Pick up the item ball in the eastern part of Great Marsh Area 6, 22 tiles east and 12 tiles north of the Pastoria Great Marsh Entrance 1F doorway or transition.(91, 105)Reach this subarea; check the route and puzzle notes for HM, Bicycle, time, or story gates.event bank 485, script 7087
Persim BerryDiamond / PearlBerry treePastoria: Harvest berry patch 58 in the central part of Pastoria, 3 tiles west and 7 tiles north of the Pastoria Move Tutor House doorway or transition. The plot can be replanted after the initial harvest.(608, 828)Reach the outdoor patch on the named route or town; harvest its initial berries before planting a replacement.berry table ov52_021D76F8, patch 58
Persim BerryDiamond / PearlBerry treePastoria: Harvest berry patch 59 in the central part of Pastoria, 7 tiles north of the Pastoria Move Tutor House doorway or transition. The plot can be replanted after the initial harvest.(611, 828)Reach the outdoor patch on the named route or town; harvest its initial berries before planting a replacement.berry table ov52_021D76F8, patch 59
Nanab BerryDiamond / PearlBerry treePastoria: Harvest berry patch 60 in the central part of Pastoria, 2 tiles west and 7 tiles north of the Pastoria Move Tutor House doorway or transition. The plot can be replanted after the initial harvest.(609, 828)Reach the outdoor patch on the named route or town; harvest its initial berries before planting a replacement.berry table ov52_021D76F8, patch 60
Nanab BerryDiamond / PearlBerry treePastoria: Harvest berry patch 61 in the central part of Pastoria, 1 tile west and 7 tiles north of the Pastoria Move Tutor House doorway or transition. The plot can be replanted after the initial harvest.(610, 828)Reach the outdoor patch on the named route or town; harvest its initial berries before planting a replacement.berry table ov52_021D76F8, patch 61
Macho BraceDiamond / PearlNPC / scripted giftPastoria West House: Show the Pastoria collector all three Burmy cloak forms to receive the Macho Brace.NPC (5, 5); script 2Carry Plant Cloak, Sandy Cloak, and Trash Cloak Burmy simultaneously in the party; Pokedex registration alone does not satisfy the check.script bank 127
Red ScarfDiamond / PearlNPC / scripted giftPastoria Scarf Guy House: Show the Scarf Guy a Pokemon with at least 200 Cool condition.NPC (5, 5); script 1Lead with a Pokemon at 200 or more Cool Contest condition; one-time gift.script bank 130
Blue ScarfDiamond / PearlNPC / scripted giftPastoria Scarf Guy House: Show the Scarf Guy a Pokemon with at least 200 Beauty condition.NPC (5, 5); script 1Lead with a Pokemon at 200 or more Beauty Contest condition; one-time gift.script bank 130
Pink ScarfDiamond / PearlNPC / scripted giftPastoria Scarf Guy House: Show the Scarf Guy a Pokemon with at least 200 Cute condition.NPC (5, 5); script 1Lead with a Pokemon at 200 or more Cute Contest condition; one-time gift.script bank 130
Green ScarfDiamond / PearlNPC / scripted giftPastoria Scarf Guy House: Show the Scarf Guy a Pokemon with at least 200 Smart condition.NPC (5, 5); script 1Lead with a Pokemon at 200 or more Smart Contest condition; one-time gift.script bank 130
Yellow ScarfDiamond / PearlNPC / scripted giftPastoria Scarf Guy House: Show the Scarf Guy a Pokemon with at least 200 Tough condition.NPC (5, 5); script 1Lead with a Pokemon at 200 or more Tough Contest condition; one-time gift.script bank 130
HM05 DefogDiamond / PearlGiftPastoria City, Great Marsh, and Barry: Given by the green-haired attendant immediately inside the Great Marsh; field use requires the Fen Badge.NPC / systemSee the route plan.editorial script/system note
Move Reminder serviceDiamond / PearlRepeatable move relearningPastoria City, Great Marsh, and Barry: The Pastoria Move Reminder reteaches one eligible level-up move per payment.NPC / systemPay 1 Heart Scale for each move relearned.editorial script/system note
Daily resistance Berry (Occa through Chilan pool)Diamond / PearlDaily random giftPastoria City, Great Marsh, and Barry: The southwest Pastoria house randomly gives one of the 17 type-resistance Berries from Occa through Chilan.NPC / systemOnce per day; speak to the Berry-giving NPC in Pastoria's southwest house.editorial script/system note

Hidden Items

Hidden items with Dowsing Machine directions and requirements
Hidden itemArea / plain-English placementQA coordinateRequirementSource
Full HealPastoria: Use the Dowsing Machine in the southwestern part of Pastoria, 6 tiles west and 13 tiles south of the Pastoria Southwest House doorway or transition and inspect that exact ground tile.(583, 857)Dowsing Machine Pokétch app. Reach this subarea; check the route and puzzle notes for HM, Bicycle, time, or story gates.event bank 119, script 8027
Rare CandyGreat Marsh Area 1: Use the Dowsing Machine in Area 1's northwest grass pocket, west of the internal rail line.(34, 38)Dowsing Machine Pokétch app. Pay the Great Marsh entry fee and reach Area 1 within the 500-step limit.event bank 480, script 8210
Toxic PlateGreat Marsh Area 2: Use the Dowsing Machine in Area 2's northeast grass pocket, east of the internal rail line.(86, 35)Dowsing Machine Pokétch app. Pay the Great Marsh entry fee and reach Area 2 within the 500-step limit.event bank 481, script 8211
Ultra BallGreat Marsh Area 3: Use the Dowsing Machine in Area 3's northwest muddy-grass pocket beside the raised path.(47, 79)Dowsing Machine Pokétch app. Pay the Great Marsh entry fee and reach Area 3 within the 500-step limit.event bank 482, script 8212
NuggetGreat Marsh Area 4: Use the Dowsing Machine in Area 4's northeast muddy-grass pocket beside the raised path.(93, 79)Dowsing Machine Pokétch app. Pay the Great Marsh entry fee and reach Area 4 within the 500-step limit.event bank 483, script 8213
Full HealGreat Marsh Area 5: Use the Dowsing Machine in Area 5's southwest grass near the southern connecting path.(41, 108)Dowsing Machine Pokétch app. Pay the Great Marsh entry fee and reach Area 5 within the 500-step limit.event bank 484, script 8214
Hyper PotionGreat Marsh Area 6: Use the Dowsing Machine in the eastern part of Great Marsh Area 6, 22 tiles east and 10 tiles north of the Pastoria Great Marsh Entrance 1F doorway or transition and inspect that exact ground tile.(91, 107)Dowsing Machine Pokétch app. Reach this subarea; check the route and puzzle notes for HM, Bicycle, time, or story gates.event bank 485, script 8215

Puzzles, Warps, And Switches

  1. Use the tram to reach Areas 1 and 2 cheaply, then work south through Areas 3-6. Pick up HM05 from the first attendant inside before spending the visit on encounters.
  2. The marsh's mud tiles can trap the player; alternate directional inputs instead of holding one direction when the character sinks.

Boss Strategy And Partners

Pokémon Trainer Barry trainer sprite from Pokémon Diamond and Pearl.Pokémon Trainer BarryPokémon Trainer Barry • source ID 473
Reward: ₽2,800Single battle

Full team

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 Barry trainer sprite from Pokémon Diamond and Pearl.Pokémon Trainer BarryPokémon Trainer Barry • source ID 474
Reward: ₽2,800Single battle

Full team

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 Barry trainer sprite from Pokémon Diamond and Pearl.Pokémon Trainer BarryPokémon Trainer Barry • source ID 475
Reward: ₽2,800Single battle

Full team

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: Heal and restock; visit the Move Reminder and scarf house; inspect the Great Marsh binoculars; enter once and collect HM05 immediately; sweep all six areas for items and desired catches; save before approaching the Gym; defeat Barry.
  • Review all 151 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/pokediamond at commit 038cccaed5de8f013875bc5d734f912d1de08e0f: 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

Pokemon in this phase