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Pokemon Red and Blue Silph Co. Walkthrough

Marsh Badge

Silph Co. section for the Pokemon Red and Blue walkthrough with wild Pokemon, trainers, items, hidden items, coordinates, and boss strategy.

By Damodar Sharma Updated June 19, 2026 Walkthrough

Find the Card Key, clear the tower, beat the Rival and Giovanni, receive Lapras, and claim the Master Ball. This page is a standalone section for Phase 6: Marsh Badge, with source-backed Red/Blue encounter, trainer, item, hidden item, and boss data.

Source maps

Silph Co 1F, Silph Co 2F, Silph Co 3F, Silph Co 4F, Silph Co 5F, Silph Co 6F, Silph Co 7F, and Silph Co 8F, and 4 more map files.

Wild rows1 Trainers31 Items17

Route plan

Silph is the biggest trainer dungeon in Red/Blue. The 5F Card Key opens the locked doors; heal beds on 9F can reset a long clear.

Wild Pokemon

Area / subarea Version Method Pokemon Level Odds Condition / requirement
Silph Co 7FBothGift Lapras Red and Blue sprite Lapras 15GiftSpeak to the Silph employee after the Rival fight.

Trainers

Route order Trainer Team Reward Optional / rematch note
1. Silph Co 2F (5, 12)Scientist trainer spriteScientistParty #2
Grimer Red and Blue sprite Grimer Lv. 26 Weezing Red and Blue sprite Weezing Lv. 26 Koffing Red and Blue sprite Koffing Lv. 26 Weezing Red and Blue sprite Weezing Lv. 26
$1,300One-time trainer; no rematch in Red/Blue.
2. Silph Co 2F (24, 13)Scientist trainer spriteScientistParty #3
Magnemite Red and Blue sprite Magnemite Lv. 28 Voltorb Red and Blue sprite Voltorb Lv. 28 Magneton Red and Blue sprite Magneton Lv. 28
$1,400One-time trainer; no rematch in Red/Blue.
3. Silph Co 2F (16, 11)Rocket trainer spriteRocketParty #23
Cubone Red and Blue sprite Cubone Lv. 29 Zubat Red and Blue sprite Zubat Lv. 29
$870One-time trainer; no rematch in Red/Blue.
4. Silph Co 2F (24, 7)Rocket trainer spriteRocketParty #24
Golbat Red and Blue sprite Golbat Lv. 25 Zubat Red and Blue sprite Zubat Lv. 25 Zubat Red and Blue sprite Zubat Lv. 25 Raticate Red and Blue sprite Raticate Lv. 25 Zubat Red and Blue sprite Zubat Lv. 25
$750One-time trainer; no rematch in Red/Blue.
5. Silph Co 3F (20, 7)Rocket trainer spriteRocketParty #25
Raticate Red and Blue sprite Raticate Lv. 28 Hypno Red and Blue sprite Hypno Lv. 28 Raticate Red and Blue sprite Raticate Lv. 28
$840One-time trainer; no rematch in Red/Blue.
6. Silph Co 3F (7, 9)Scientist trainer spriteScientistParty #4
Electrode Red and Blue sprite Electrode Lv. 29 Weezing Red and Blue sprite Weezing Lv. 29
$1,450One-time trainer; no rematch in Red/Blue.
7. Silph Co 4F (9, 14)Rocket trainer spriteRocketParty #26
Machop Red and Blue sprite Machop Lv. 29 Drowzee Red and Blue sprite Drowzee Lv. 29
$870One-time trainer; no rematch in Red/Blue.
8. Silph Co 4F (14, 6)Scientist trainer spriteScientistParty #5
Electrode Red and Blue sprite Electrode Lv. 33
$1,650One-time trainer; no rematch in Red/Blue.
9. Silph Co 4F (26, 10)Rocket trainer spriteRocketParty #27
Ekans Red and Blue sprite Ekans Lv. 28 Zubat Red and Blue sprite Zubat Lv. 28 Cubone Red and Blue sprite Cubone Lv. 28
$840One-time trainer; no rematch in Red/Blue.
10. Silph Co 5F (8, 16)Rocket trainer spriteRocketParty #28
Arbok Red and Blue sprite Arbok Lv. 33
$990One-time trainer; no rematch in Red/Blue.
11. Silph Co 5F (8, 3)Scientist trainer spriteScientistParty #6
Magneton Red and Blue sprite Magneton Lv. 26 Koffing Red and Blue sprite Koffing Lv. 26 Weezing Red and Blue sprite Weezing Lv. 26 Magnemite Red and Blue sprite Magnemite Lv. 26
$1,300One-time trainer; no rematch in Red/Blue.
12. Silph Co 5F (18, 10)Juggler trainer spriteJugglerParty #1
Kadabra Red and Blue sprite Kadabra Lv. 29 Mr. Mime Red and Blue sprite Mr. Mime Lv. 29
$1,015One-time trainer; no rematch in Red/Blue.
13. Silph Co 5F (28, 4)Rocket trainer spriteRocketParty #29
Hypno Red and Blue sprite Hypno Lv. 33
$990One-time trainer; no rematch in Red/Blue.
14. Silph Co 6F (17, 3)Rocket trainer spriteRocketParty #30
Machop Red and Blue sprite Machop Lv. 29 Machoke Red and Blue sprite Machoke Lv. 29
$870One-time trainer; no rematch in Red/Blue.
15. Silph Co 6F (7, 8)Scientist trainer spriteScientistParty #7
Voltorb Red and Blue sprite Voltorb Lv. 25 Koffing Red and Blue sprite Koffing Lv. 25 Magneton Red and Blue sprite Magneton Lv. 25 Magnemite Red and Blue sprite Magnemite Lv. 25 Koffing Red and Blue sprite Koffing Lv. 25
$1,250One-time trainer; no rematch in Red/Blue.
16. Silph Co 6F (14, 15)Rocket trainer spriteRocketParty #31
Zubat Red and Blue sprite Zubat Lv. 28 Zubat Red and Blue sprite Zubat Lv. 28 Golbat Red and Blue sprite Golbat Lv. 28
$840One-time trainer; no rematch in Red/Blue.
17. Silph Co 7F (13, 1)Rocket trainer spriteRocketParty #32
Raticate Red and Blue sprite Raticate Lv. 26 Arbok Red and Blue sprite Arbok Lv. 26 Koffing Red and Blue sprite Koffing Lv. 26 Golbat Red and Blue sprite Golbat Lv. 26
$780One-time trainer; no rematch in Red/Blue.
18. Silph Co 7F (2, 13)Scientist trainer spriteScientistParty #8
Electrode Red and Blue sprite Electrode Lv. 29 Muk Red and Blue sprite Muk Lv. 29
$1,450One-time trainer; no rematch in Red/Blue.
19. Silph Co 7F (20, 2)Rocket trainer spriteRocketParty #33
Cubone Red and Blue sprite Cubone Lv. 29 Cubone Red and Blue sprite Cubone Lv. 29
$870One-time trainer; no rematch in Red/Blue.
20. Silph Co 7F (19, 14)Rocket trainer spriteRocketParty #34
Sandshrew Red and Blue sprite Sandshrew Lv. 29 Sandslash Red and Blue sprite Sandslash Lv. 29
$870One-time trainer; no rematch in Red/Blue.
21. Silph Co 8F (19, 2)Rocket trainer spriteRocketParty #35
Raticate Red and Blue sprite Raticate Lv. 26 Zubat Red and Blue sprite Zubat Lv. 26 Golbat Red and Blue sprite Golbat Lv. 26 Rattata Red and Blue sprite Rattata Lv. 26
$780One-time trainer; no rematch in Red/Blue.
22. Silph Co 8F (10, 2)Scientist trainer spriteScientistParty #9
Grimer Red and Blue sprite Grimer Lv. 29 Electrode Red and Blue sprite Electrode Lv. 29
$1,450One-time trainer; no rematch in Red/Blue.
23. Silph Co 8F (12, 15)Rocket trainer spriteRocketParty #36
Weezing Red and Blue sprite Weezing Lv. 28 Golbat Red and Blue sprite Golbat Lv. 28 Koffing Red and Blue sprite Koffing Lv. 28
$840One-time trainer; no rematch in Red/Blue.
24. Silph Co 9F (2, 4)Rocket trainer spriteRocketParty #37
Drowzee Red and Blue sprite Drowzee Lv. 28 Grimer Red and Blue sprite Grimer Lv. 28 Machop Red and Blue sprite Machop Lv. 28
$840One-time trainer; no rematch in Red/Blue.
25. Silph Co 9F (21, 13)Scientist trainer spriteScientistParty #10
Voltorb Red and Blue sprite Voltorb Lv. 28 Koffing Red and Blue sprite Koffing Lv. 28 Magneton Red and Blue sprite Magneton Lv. 28
$1,400One-time trainer; no rematch in Red/Blue.
26. Silph Co 9F (13, 16)Rocket trainer spriteRocketParty #38
Golbat Red and Blue sprite Golbat Lv. 28 Drowzee Red and Blue sprite Drowzee Lv. 28 Hypno Red and Blue sprite Hypno Lv. 28
$840One-time trainer; no rematch in Red/Blue.
27. Silph Co 10F (1, 9)Rocket trainer spriteRocketParty #39
Machoke Red and Blue sprite Machoke Lv. 33
$990One-time trainer; no rematch in Red/Blue.
28. Silph Co 10F (10, 2)Scientist trainer spriteScientistParty #11
Magnemite Red and Blue sprite Magnemite Lv. 29 Koffing Red and Blue sprite Koffing Lv. 29
$1,450One-time trainer; no rematch in Red/Blue.
29. Silph Co 11F (6, 9)Giovanni trainer spriteGiovanniParty #2
Nidorino Red and Blue sprite Nidorino Lv. 37 Kangaskhan Red and Blue sprite Kangaskhan Lv. 35 Rhyhorn Red and Blue sprite Rhyhorn Lv. 37 Nidoqueen Red and Blue sprite Nidoqueen Lv. 41
$4,059One-time trainer; no rematch in Red/Blue.
30. Silph Co 11F (3, 16)Rocket trainer spriteRocketParty #41
Cubone Red and Blue sprite Cubone Lv. 32 Drowzee Red and Blue sprite Drowzee Lv. 32 Marowak Red and Blue sprite Marowak Lv. 32
$960One-time trainer; no rematch in Red/Blue.
31. Silph Co 11F (15, 9)Rocket trainer spriteRocketParty #40
Rattata Red and Blue sprite Rattata Lv. 25 Rattata Red and Blue sprite Rattata Lv. 25 Zubat Red and Blue sprite Zubat Lv. 25 Rattata Red and Blue sprite Rattata Lv. 25 Ekans Red and Blue sprite Ekans Lv. 25
$750One-time trainer; no rematch in Red/Blue.

Items And Hidden Items

Item Type Area / direction Coordinate Requirement
Hyper PotionVisible item ballVisible item ball at (8, 5) in Silph Co 3F.(8, 5)Reach this tile; HMs or story flags may be needed for late-game dungeons.
Full HealVisible item ballVisible item ball at (3, 9) in Silph Co 4F.(3, 9)Reach this tile; HMs or story flags may be needed for late-game dungeons.
Max ReviveVisible item ballVisible item ball at (4, 7) in Silph Co 4F.(4, 7)Reach this tile; HMs or story flags may be needed for late-game dungeons.
Escape RopeVisible item ballVisible item ball at (5, 8) in Silph Co 4F.(5, 8)Reach this tile; HMs or story flags may be needed for late-game dungeons.
TM09 Take DownVisible item ballVisible item ball at (2, 13) in Silph Co 5F.(2, 13)Reach this tile; HMs or story flags may be needed for late-game dungeons.
ProteinVisible item ballVisible item ball at (4, 6) in Silph Co 5F.(4, 6)Reach this tile; HMs or story flags may be needed for late-game dungeons.
Card KeyVisible item ballVisible item ball at (21, 16) in Silph Co 5F.(21, 16)Reach this tile; HMs or story flags may be needed for late-game dungeons.
HP UpVisible item ballVisible item ball at (3, 12) in Silph Co 6F.(3, 12)Reach this tile; HMs or story flags may be needed for late-game dungeons.
X AccuracyVisible item ballVisible item ball at (2, 15) in Silph Co 6F.(2, 15)Reach this tile; HMs or story flags may be needed for late-game dungeons.
CalciumVisible item ballVisible item ball at (1, 9) in Silph Co 7F.(1, 9)Reach this tile; HMs or story flags may be needed for late-game dungeons.
TM03 Swords DanceVisible item ballVisible item ball at (24, 11) in Silph Co 7F.(24, 11)Reach this tile; HMs or story flags may be needed for late-game dungeons.
TM26 EarthquakeVisible item ballVisible item ball at (2, 12) in Silph Co 10F.(2, 12)Reach this tile; HMs or story flags may be needed for late-game dungeons.
Rare CandyVisible item ballVisible item ball at (4, 14) in Silph Co 10F.(4, 14)Reach this tile; HMs or story flags may be needed for late-game dungeons.
CarbosVisible item ballVisible item ball at (5, 11) in Silph Co 10F.(5, 11)Reach this tile; HMs or story flags may be needed for late-game dungeons.
ElixerHidden itemHidden on the searchable tile at (12, 3) in Silph Co 5F.(12, 3)Press A on the hidden tile or use the Itemfinder nearby.
Max PotionHidden itemHidden on the searchable tile at (2, 15) in Silph Co 9F.(2, 15)Press A on the hidden tile or use the Itemfinder nearby.
Master BallKey rewardDefeat Giovanni in Silph Co. and talk to the president.-Defeat Giovanni in Silph Co. and talk to the president.

Boss Strategy

Boss / branch Team Reward Danger notes Practical counters
Rival trainer spriteRivalSilph Co. 7F Rival if you chose Charmander
Pidgeot Red and Blue sprite Pidgeot Lv. 37 Growlithe Red and Blue sprite Growlithe Lv. 38 Exeggcute Red and Blue sprite Exeggcute Lv. 35 Alakazam Red and Blue sprite Alakazam Lv. 35 Blastoise Red and Blue sprite Blastoise Lv. 40
$2,600The level 40 evolved starter is the main wall before Giovanni.Plan around the rival's Squirtle line. Keep status, a fresh switch, and a direct answer to Pidgey/Pidgeotto before committing your starter.
Rival trainer spriteRivalSilph Co. 7F Rival if you chose Squirtle
Pidgeot Red and Blue sprite Pidgeot Lv. 37 Gyarados Red and Blue sprite Gyarados Lv. 38 Growlithe Red and Blue sprite Growlithe Lv. 35 Alakazam Red and Blue sprite Alakazam Lv. 35 Venusaur Red and Blue sprite Venusaur Lv. 40
$2,600The level 40 evolved starter is the main wall before Giovanni.Plan around the rival's Bulbasaur line. Keep status, a fresh switch, and a direct answer to Pidgey/Pidgeotto before committing your starter.
Rival trainer spriteRivalSilph Co. 7F Rival if you chose Bulbasaur
Pidgeot Red and Blue sprite Pidgeot Lv. 37 Exeggcute Red and Blue sprite Exeggcute Lv. 38 Gyarados Red and Blue sprite Gyarados Lv. 35 Alakazam Red and Blue sprite Alakazam Lv. 35 Charizard Red and Blue sprite Charizard Lv. 40
$2,600The level 40 evolved starter is the main wall before Giovanni.Plan around the rival's Charmander line. Keep status, a fresh switch, and a direct answer to Pidgey/Pidgeotto before committing your starter.
Giovanni trainer spriteGiovanniGiovanni - Silph Co.
Nidorino Red and Blue sprite Nidorino Lv. 37 Kangaskhan Red and Blue sprite Kangaskhan Lv. 35 Rhyhorn Red and Blue sprite Rhyhorn Lv. 37 Nidoqueen Red and Blue sprite Nidoqueen Lv. 41
$4,059Nidoqueen and Kangaskhan turn this into a real boss fight after the Rival.Water/Ice coverage and Psychic attacks help. Heal after the Rival before triggering Giovanni.

Completion Checklist

  • Get Card Key on 5F.
  • Rescue Lapras on 7F.
  • Defeat Rival and Giovanni.
  • Receive Master Ball from the president.
  • Verify the wild table's version splits before leaving if you are filling the Pokedex.
  • Use the item rows as a visible-item and hidden-item sweep before moving to the next section.

Sources

  • pret/pokered: wild encounters, trainer parties, trainer money, map object events, hidden event items, rods, trades, and prize Pokemon.
  • Encounter odds aggregate the Gen I ten-slot rates: 51/256, 51/256, 39/256, 25/256, 25/256, 25/256, 13/256, 13/256, 11/256, and 3/256.
  • Red/Blue has no day/night encounter column; tables use Version, Method, and Condition instead.

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Pokemon Red and Blue Walkthrough HubPhase 6: Marsh BadgePrevious: Saffron City and Fighting DojoNext: Saffron Gym