Pokemon Diamond and Pearl Galactic Grunt Chase and SecretPotion Walkthrough

Pursue the bomb-carrying Grunt from Pastoria to Valor Lakefront, meet Cynthia, and receive the SecretPotion for Route 210. 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

Speak to the Grunt by the marsh; chase him east across Route 213; interact at every stop; defeat him near Valor Lakefront; speak to Cynthia; accept the SecretPotion; Fly to Solaceon for the northern Route 210 road.

• This story chase reuses Pastoria, Route 213, and Valor Lakefront maps already owned by earlier sections, so it intentionally has no map pattern to prevent duplicate extracted tables.
• The Grunt battle is a scripted story trainer and should be listed from the source event attached to its original map section if map-level extraction is exhaustive.

Exact pret map constants (0)

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.

No trainer object, scripted battle, or assigned boss team is sourced for this section.

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 Grunt moves only after being spoken to at each waypoint. If he seems missing, backtrack to the previous dialogue stop rather than searching Lake Valor.

Boss Strategy And Partners

No Gym Leader, rival branch, Galactic boss, Elite Four member, Champion, story partner, or major postgame battle is assigned here.

Completion Checklist

• Complete the currently reachable part of this route plan: Speak to the Grunt by the marsh; chase him east across Route 213; interact at every stop; defeat him near Valor Lakefront; speak to Cynthia; accept the SecretPotion; Fly to Solaceon for the northern Route 210 road.
• 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/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.