Gameshark Trainer Encounter Hexes

Most of us know about the encounter modifier Gameshark code for Pokemon Red and Blue.

01xx D8CF

"BE" is the last hex value that you can put, which makes Victreebel appear. After that, we still have over 60 other values that can be put in substitution for x. I have attempted to document the encounters myself. They're certainly not complete or even professionally written out since I just jotted down what I found each time. Let me know if this page was already made somewhere.

**ALWAYS PUT "D8CF" AFTER EACH VALUE**

Missing hexes:
011F-Nidoran Male-sounding Missingno
0132-Nidoran Male-sounding Missingno
0134-Nidoran Male-sounding Missingno
0138-Nidoran Male-sounding Missingno
013D-Nidoran Male-sounding Missingno
013E-Nidoran Male-sounding Missingno
013F-Nidoran Male-sounding Missingno
0143-Nidoran Male-sounding Missingno
0144-Nidoran Male-sounding Missingno
0145-Nidoran Male-sounding Missingno
014F-Nidoran Male-sounding Missingno
0150-Nidoran Male-sounding Missingno
0151-Pidgey-sounding Missingno
0156-Nidoran Male-sounding Missingno
0157-Nidoran Male-sounding Missingno
015E-Dragonair-sounding Missingno
015F-Ivysaur-sounding Missingno
0173-Nidoran Male-sounding Missingno
0179-Nidoran Male-sounding Missingno
017A-Nidoran Male-sounding Missingno
017F-Strange-sounding Missingno
0186-Nidoran Male-sounding Missingno
0187-Nidoran Male-sounding Missingno
0189-Dragonair-sounding Missingno
018C-Nidoran Male-sounding Missingno




0192-Nidoran-Male-Sounding Missingno
019C-Nidoran-Male-Sounding Missingno
019F-Nidoran-Male-Sounding Missingno
01A0-Nidoran-Male-Sounding Missingno
01A1-Nidoran-Male-Sounding Missingno
01A2-Nidoran-Male-Sounding Missingno
01AC-Nidoran-Male-Sounding Missingno
01AE-Nidoran-Male-Sounding Missingno
01AF-Nidoran-Male-Sounding Missingno
01B5-Strange-sounding Missingno
01B6-Nidoran-Male-Sounding Missingno (3 alternating forms)
01B7-Aerodactyl Fossil Missingno
01B8-Nidoran-Male-Sounding Missingno (different form)


Post-Victreebel codes:

Hex | Description | Pokemon seen in GSC
01BF- A------------------------------Chikorita
01CA-Bug-catcher battle (freezes)
01CB-Lass Battle (has 3 P!s) Notable training method------------------Noctowl
01CC-Sailor Battle (has 3 PkMn n)---------------------Ledyba in GSC
01CD-Jr. Trainer (Male) Battle (has 3 TRAINER)------------------Ledian in GSC
01CE-Jr. Trainer (Female) Battle (has 3 W G d)------------------Spinarak in GSC
01CF-Pokemaniac Battle (has 3 O PkMn4 X)------------------Ariados in GSC
01C0-a------------------------------Bayleef
01C1-Freezes
01C2- .4------------------------------Cyndaquil
01C3- h POKE---------------------------Quilava
01C4-Freezes
01C5-PkMn---------------------------Totodile
01C6-LM4---------------------------Croconaw
01C7-Freezes
01C8-Freezes upon encounter (low HP sound plays)
01C9-Youngster Battle (has 3 8's) slowed-down champion music plays.------------Pokemon in that battle is Sentret. The list goes numerically from here.
01DA-Beauty Battle (has 3 (small glitch block))------------------Furret
01DB-Psychic Battle (freezes)------------------------HootHoot
01DC-Rocker Battle (has 3 (glitch blocks)), second battle has a 7PkMnv------------Noctowl
01DD-Juggler Battle (has 3 7PkMnv)---------------------Bellossom
01DE-Tamer Battle (has 3 PkMn) Nice Music------------------Marill
01DF-Bird Keeper Battle (has 3 (glitch blockPkMn) looks different from Tamer.---------Azumarill
01D0-Super Nerd Battle ( has 3 PkMn PkMn T)------------------Crobat
01D1-Hiker Battle (has 3 4 8 4 8) (slowed-down trainer victory music)------------Chinchou
01D2-Biker Battle (freezes)
01D3-Burglar Battle (has 3 M p'u)---------------------Pichu
01D4-Engineer Battle (has 3 A G)---------------------Cleffa
01D5-Juggler Battle (has 3 P, freezes)---------------------Togepi (maybe)
01D6-Fisherman Battle (has 3 4.h) (slowed down champion music)------------Togetic (maybe)
01D7-Swimmer Battle (has 3 (glitch block), cry sounds like gunfire)------------Natu (maybe)
01D8-Cue Ball Battle (has 3 PkMnaPkMn(male symbol)fPkMnk, freezes)------------Xatu (maybe)
01D9-Gambler Battle (has 3 PkMnRPkMnR)------------------Mareep (maybe)
01E0-Blackbelt Battle (has 3 PkMnPkMn)---------------------Flaaffy (maybe)
01E1-Gary Battle (freezes)------------------------Ampharos (maybe)
01E2-Prof. Oak Battle (freezes)------------------------Hoppip
01E3-Cheif Battle (sprite of Scientist) (has 3 (blank symbol))---------------Skiploom
01E4-Scientist Battle (has 3 (blank symbol), different from Cheif)---------------Jumpluff
01E5-Giovanni Battle (has 3 C, freezes)
01E6-Rocket Battle (has 3 (glitch block))
01E7-Cooltrainer Male Battle (has 3 P(japanese symbol)), changes to Rhydon upon capture
01E8-Cooltrainer Female Battle (has 3 XC, freezes)
01E9-Bruno Battle (has 3 c)
01EA-Brock Battle (has 3 A)
01EB-Misty Battle (has 3 (glitch block, similar to Rocket's Pokemon)
01EC-Lt. Surge Battle (freezes)
01ED-Erika Battle (freezes)
01EE-Koga Battle (has 3 g), sound like Nidoran female
01EF-Blaine Battle (freezes)
01F0-Sabrina Battle (has 3 Pokemoney symbol, blank on Pokemon name)*********
01F1-Gentleman Battle (has 3 94)
01F2-Gary Battle (has 3 (japanese symbol)) Cry sounds like Surf
01F3-Gary Battle (Champion sprite) (has 3 (glitch JPN symbol), music at end of battle carries on into the field
01F4-Loreli Battle (has 3 (pokemoney symbol)) Cry sounds like Raticate
01F5-Channeler Battle (freezes)
01F6-Agatha Battle (has 3 G 'Mp)
01F7-Lance Battle (has 3 'N g 'Mp) Sounds like Ivysaur
*01F8-'n g $
01F9-Freezes upon encounter
01FA-Freezes upon encounter
01FB-Freezes upon encounter
01FC-Freezes upon encounter
01FD-Freezes upon encounter
01FE-Freezes upon encounter
01FF-Freezes upon encounter





Catchable Missingnos:
W G d (Sabrina)
'N g 'Mp (Lance)

*For 01F8 - You must battle a trainer to activate this encounter. If you enter a battle with a wild Pokemon to make it appear, the game will freeze.