Pokemon Yelllow Codes xD

Surfing Pikachu:
013972D1 (To overwrite the first attack with Surf)

013973D1 (To overwrite the second attack with Surf)

013974D1 (To overwrite the third attack with Surf)

013975D1 (To overwrite the fourth attack with Surf)

Catch any wild Pokemon:
01??D7CF

99: Bulbasaur
09: Ivysaur
9A: Venusaur
B0: Charmander
B2: Charmeleon
B4: Charizard
B1: Squirtle
B3: Wartortle
1C: Blastoise
7B: Caterpie
7C: Metapod
7D: Butterfree
70: Weedle
71: Kakuna
72: Beedrill
24: Pidgey
96: Pidgeotto
97: Pidgeot
A5: Rattata
A6: Raticate

05: Spearow
23: Fearow
6C: Ekans
2D: Arbok
54: Pikachu
55: Raichu
60: Sandshrew
61: Sandslash
0F: Nidoran (female)
A8: Nidorina
10: NidoQueen
03: Nidoran (male)
A7: Nidorino
07: NidoKing
04: Clefairy
8E: Clefable
52: Vulpix
53: Ninetales
64: Jigglypuff
65: Wigglytuff
6B: Zubat
82: Golbat
B9: Oddish
BA: Gloom
BB: Vileplume
6D: Paras
2E: Parasect
41: Venonat
77: Venamoth

3B: Diglett
76: Dugtrio
4D: Meowth
90: Persian
2F: Psyduck
80: Golduck
39: Mankey
75: Primeape
21: Growlithe
14: Arcanine
47: Poliwag
6E: Poliwhirl
6F: Poliwrath
94: Abra
26: Kadabra
95: Alakazam
6A: Machop
29: Machoke
7E: Machamp
BC: Bellsprout
BD: Weepinbell
BE: Victreebell
18: Tentacool
9B: Tentacruel
A9: Geodude
27: Graveler
31: Golem
A3: Ponyta
A4: Rapidash
25: Slowpoke
08: Slowbro
AD: Magnemite
36: Magneton
40: Farfetch'd
46: Doduo
74: Dodrio
3A: Seel
78: Dewgong
0D: Grimer
88: Muk
17: Shellder
8B: Cloyster
19: Gastly
93: Haunter
0E: Gengar
22: Onix
30: Drowzee
81: Hypno
4E: Krabby

8A: Kingler
06: Voltorb
8D: Electrode
0C: Exeggcute
0A: Exeggutor
11: Cubone
91: Marowak
2B: Hitmonlee
2C: Hitmonchan
0B: Lickitung
37: Koffing
8F: Weezing
12: Rhyhorn
01: Rhydon
28: Chansey
1E: Tangela
02: Kangaskhan
5C: Horsea
5D: Seadra
9D: Goldeen
9E: Seaking
1B: Staru
98: Starmie
2A: Mr. Mime
1A: Scyther
48: Jynx
35: Electabuzz
33: Magmar
1D: Pinsir
3C: Tauros
85: Majikarp
16: Gyarados
13: Lapras
4C: Ditto
66: Eevee
69: Vaporeon
68: Jolteon
67: Flareon
AA: Porygon
62: Omanyte
63: Omastar
5A: Kabuto
5B: Kabutops
AB: Aerodactyl
84: Snorlax
4A: Articuno
4B: Zapdos
49: Motres

58: Dratini
59: Dragonair
42: Dragonite
83: Mewtwo
15: Mew
34: Missingno

Catch a Pokemon level 5:
010526D1
Catch a Pokemon level 10:
010A26D1

Catch a Pokemon level 15:
010F26D1
Catch a Pokemon level 20:
011426D1

Catch a Pokemon level 30:
011E26D1
Catch a Pokemon level 40:
012826D1

Catch a Pokemon level 50:
013226D1
Catch a Pokemon level 75:
014B26D1

Catch a Pokemon level 190:
01BE26D1

Catch a Pokemon level 255:
01FF26D1
This code requires GameShark v3.0. Note: Do not use Rare Candy with this code.

Unlimited money:
019946D3
019947D3
019948D3

Buy anything from Pokemart:
First slot:
01<01-53>7BCF

Second slot:
01<01-53>7CCF

Third slot:
01<01-53>7DCF

Fourth slot:
01<01-53>7ECF

Use one of the following values.
01: Master Ball ($0)
02: Ultra Ball ($1200)
03: Great Ball ($200)
04: Pokéball ($200)
0A: Moon Stone ($0)
0B: Antidote ($100)
0C: Burn Heal ($250)
0D: Ice Heal ($250)

10 : Full Restore ($3000)
11: Max Potion ($2500)
12: Hyper Potion ($1500)
13: Super Potion ($700)
14: Potion ($300)
1D: Escape Rope ($550)
1E: Repel ($350)
20 : Fire Stone ($2100)
21: Thunderstone ($2100)
22: Waterstone ($2100)
23: HP up ($9800)

24: Protein ($9800)
25: Iron ($9800)
26: Carbos ($9800)
27: Calcium ($9800)
28: Rare Candy ($4800)
2E: X Accuracy ($950)
2F: Leaf Stone ($2100)
31: Nugget ($10000)
32: PP up ($9800)
33: PokéDoll ($1000)
34: Full Heal ($600)

35: Revive ($1500)
36: Max Revive ($4000)
37: Guard Spec ($700)
38: Super Repel ($500)
30: Max Repel ($700)
3A: Dire Hit ($650)
3B: Coin ($10)
3C: Fresh Water ($200)
3D: Soda Pop ($300)
3E: Lemonade ($350)
41: X Attack ($500)
42: X Defend ($550)
43: X Speed ($350)
44: X Special ($350)
4B: Exp. All ($0)
4F: PP Up ($0)
50: Ether ($0)
51: Max Ether ($0)
52: Elixer ($0)
53: Max Elixer ($0