Phase 8 section
Pokemon Diamond and Pearl Spear Pillar: Mars, Jupiter, and Cyrus Walkthrough
Beacon Badge Break through the final Grunts, partner with Barry against Mars and Jupiter, receive his heal, and defeat Cyrus's full team. Exact Diamond/Pearl encounters, every sourced trainer, visible and hidden items, puzzle notes, boss teams, and completion checks.
Phase 8 Beacon Badge Galactic HQ, Mt. Coronet, Spear Pillar, Dialga or Palkia, Sunyshore City, and Volkner. 08 / 11 
Break through the final Grunts, partner with Barry against Mars and Jupiter, receive his heal, and defeat Cyrus's full team. 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
Mount Coronet Spear Pillar.
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
Save on arrival; clear the opening Grunts; watch the Red Chain scene; join Barry for the Commander double battle; focus one Commander at a time; accept Barry's post-battle heal; save again; defeat Cyrus; prepare for the immediate legendary encounter.
- Barry has three starter-dependent partner IDs for the Spear Pillar battle. Mars and Jupiter use their late-game teams, followed by Cyrus's Honchkrow, Crobat, Gyarados, and Weavile.
- Barry heals the player's party after the Commander fight, but save and reorganize before Cyrus because his fast coverage team can exploit a poor lead.
Exact pret map constants (1)
MAP_MOUNT_CORONET_SPEAR_PILLAR
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 |
|---|---|---|---|---|---|
 Galactic GruntGalactic • source ID 521 | Mount Coronet Spear Pillar • scripted | ₽1,520 | The Spear Pillar ascent requires Surf, Strength, and Rock Climb plus the late Galactic story state. | Script-triggered battle; not treated as an ordinary field rematch. | |
 Galactic Female GruntGalactic Female • source ID 527 | Mount Coronet Spear Pillar • scripted | ₽1,520 | The Spear Pillar ascent requires Surf, Strength, and Rock Climb plus the late Galactic story state. | Script-triggered battle; not treated as an ordinary field rematch. | |
 Commander MarsCommander Mars • source ID 528 | Mount Coronet Spear Pillar • scripted | ₽3,600 | The Spear Pillar ascent requires Surf, Strength, and Rock Climb plus the late Galactic story state. | Major or story battle; not a VS Seeker rematch row. | |
 Commander JupiterCommander Jupiter • source ID 407 | Mount Coronet Spear Pillar • scripted | ₽3,680 | The Spear Pillar ascent requires Surf, Strength, and Rock Climb plus the late Galactic story state. | Major or story battle; not a VS Seeker rematch row. | |
 Galactic Boss CyrusGalactic Boss • source ID 404 | Mount Coronet Spear Pillar • scripted | ₽8,640 | The Spear Pillar ascent requires Surf, Strength, and Rock Climb plus the late Galactic story state. | Major or story battle; not a VS Seeker rematch row. |
Items
| Item | Version | Type | Area / exact direction | Coordinate / script | Requirement | Source |
|---|---|---|---|---|---|---|
| Adamant Orb | Diamond / Pearl | Visible item ball | Mount Coronet Spear Pillar: Pick up the item ball in the northern part of Mount Coronet Spear Pillar, 43 tiles north of the Mount Coronet 6F doorway or transition. | (31, 10) | The Spear Pillar ascent requires Surf, Strength, and Rock Climb plus the late Galactic story state. | event bank 217, script 7253 |
| Lustrous Orb | Diamond / Pearl | Visible item ball | Mount Coronet Spear Pillar: Pick up the item ball in the northern part of Mount Coronet Spear Pillar, 43 tiles north of the Mount Coronet 6F doorway or transition. | (31, 10) | The Spear Pillar ascent requires Surf, Strength, and Rock Climb plus the late Galactic story state. | event bank 217, script 7254 |
Hidden Items
No type-2 hidden-item event is present in the source maps assigned to this section.
Puzzles, Warps, And Switches
- In the double battle, remove one Commander's active Pokemon quickly to reduce incoming actions; spread damage is less valuable than turning the fight into two-on-one.
- Do not leave the summit after Cyrus unless intentionally postponing the mascot catch; the encounter follows the story scene on the same map.
Boss Strategy And Partners
Commander MarsCommander Mars • source ID 528Full team
BronzorGyro Ball / Extrasensory / Light Screen / Confuse Ray
GolbatAir Cutter / Bite / Poison Fang / Confuse Ray
Puruglyholds Sitrus Berry • Slash / Shadow Claw / Aerial Ace / Hypnosis
Danger notes
Mars uses a fast Golbat line and a physically powerful Purugly.
Practical counters
Electric/Rock coverage and a Fighting answer give the cleanest split.
Commander JupiterCommander Jupiter • source ID 407Full team
- BronzorGyro Ball / Extrasensory / Rock Slide / Reflect
- GolbatSludge Bomb / Air Cutter / Giga Drain / Mean Look
Skuntankholds Sitrus Berry • Night Slash / Poison Jab / Flamethrower / Smokescreen
Danger notes
Skuntank remains Jupiter's closer while Bronzor and Golbat drain resources first.
Practical counters
Save Ground for Skuntank, Electric or Rock for Golbat, and attack Bronzor through the weakness its ability leaves active.
Galactic Boss CyrusGalactic Boss • source ID 404Full team
HonchkrowDrill Peck / Dark Pulse / Steel Wing / Embargo
CrobatCross Poison / Air Slash / Bite / Confuse Ray
GyaradosGiga Impact / Aqua Tail / Ice Fang / Earthquake
Weavileholds Sitrus Berry • Night Slash / Ice Punch / Brick Break / X Scissor
Danger notes
Weavile and Gyarados create opposite defensive demands, while Crobat is extremely fast and Honchkrow hits hard.
Practical counters
Bring Fighting for Weavile, Electric for Gyarados/Crobat, and Rock or Ice coverage for the fliers. Preserve answers across the full four-Pokémon fight.
Pokémon Trainer BarryPokémon Trainer Barry • source ID 607Partner team
MunchlaxBody Slam / Stockpile / Swallow / Screech
StaraptorClose Combat / Aerial Ace / Take Down / Quick Attack
BuizelAqua Jet / Pursuit / Brick Break / Iron Tail
HeracrossClose Combat / Brick Break / Night Slash / Aerial Ace
PonytaFire Blast / Will O Wisp / Stomp / Take Down
TorterraGiga Drain / Bite / Leech Seed / Synthesis
Partner role
Barry joins the Spear Pillar Commander battle; his team branch depends on the starter chosen by the player.
How to use the partner
Concentrate both sides on one Commander at a time. Barry heals the player's party after Mars and Jupiter, before the Cyrus battle.
Pokémon Trainer BarryPokémon Trainer Barry • source ID 619Partner team
- MunchlaxBody Slam / Stockpile / Swallow / Screech
- StaraptorClose Combat / Aerial Ace / Take Down / Quick Attack
- BuizelAqua Jet / Pursuit / Brick Break / Iron Tail
- HeracrossClose Combat / Brick Break / Night Slash / Aerial Ace
RoseliaGiga Drain / Toxic / Ingrain / Grass Whistle
InfernapeClose Combat / Punishment / Flame Wheel / Will O Wisp
Partner role
Barry joins the Spear Pillar Commander battle; his team branch depends on the starter chosen by the player.
How to use the partner
Concentrate both sides on one Commander at a time. Barry heals the player's party after Mars and Jupiter, before the Cyrus battle.
Pokémon Trainer BarryPokémon Trainer Barry • source ID 620Partner team
- MunchlaxBody Slam / Stockpile / Swallow / Screech
- StaraptorClose Combat / Aerial Ace / Take Down / Quick Attack
- RoseliaGiga Drain / Toxic / Ingrain / Grass Whistle
- HeracrossClose Combat / Brick Break / Night Slash / Aerial Ace
- PonytaFire Blast / Will O Wisp / Stomp / Take Down
EmpoleonAqua Jet / Aerial Ace / Metal Claw / Swagger
Partner role
Barry joins the Spear Pillar Commander battle; his team branch depends on the starter chosen by the player.
How to use the partner
Concentrate both sides on one Commander at a time. Barry heals the player's party after Mars and Jupiter, before the Cyrus battle.
Completion Checklist
- Complete the currently reachable part of this route plan: Save on arrival; clear the opening Grunts; watch the Red Chain scene; join Barry for the Commander double battle; focus one Commander at a time; accept Barry's post-battle heal; save again; defeat Cyrus; prepare for the immediate legendary encounter.
- 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