Pokemon Diamond and Pearl Route 203 and the First Barry Battle Walkthrough

Defeat Barry's first starter-dependent team and sweep the ridge trainers leading to Oreburgh Gate. This standalone section joins the route plan to the original Diamond/Pearl map, encounter, trainer, item, and script data; Platinum tables are not substituted.

Route Plan

Heal in Jubilife; save before walking east; defeat Barry; catch Abra or other desired route encounters; clear the upper and lower trainer paths; collect the Repel; enter Oreburgh Gate.

• Barry is named by the player; the source trainer name is a placeholder. His starter is always the type with an advantage over yours.
• Abra usually escapes with Teleport, so lead with a status move or throw a Poke Ball immediately.

Exact pret map constants (1)

MAP_ROUTE_203

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.

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.

Items

Hidden Items

No type-2 hidden-item event is present in the source maps assigned to this section.

Puzzles, Warps, And Switches

1. The northern ledge route and southern grass route reconnect before the cave. Sweep both branches before jumping the final ledge if completing every trainer and item.

Boss Strategy And Partners

Completion Checklist

• Complete the currently reachable part of this route plan: Heal in Jubilife; save before walking east; defeat Barry; catch Abra or other desired route encounters; clear the upper and lower trainer paths; collect the Repel; enter Oreburgh Gate.
• Review all 19 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.