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Pitch Frequency Codes:
Game Music Pitch Modifier[C.Guru]
81014A12 ????
Says it all, basically modifies the pitch of the songs in the game. Default value is 3F80.
Sound Effects Pitch Modifier[C.Guru]
8101600A ????
81016042 ????
Modifies the pitch of the sfx in the game. Default Value for both lines are E890
Ambiance(Surrounding Sounds) Speed Mod[C.Guru]
81019DA6 ????
Does the same as the previous two codes, but combined together. However, when it comes to music, this code is not as good as the Game Music Pitch Modifier code, because.. You’ll find out why. Default value is 3F80.
Music Pitch Modifier[C.Guru]
8101B9B6 ????
Does the same thing as the Game Music Pitch Modifier code, but it only changes if you either enter an area where the music track changes, or if going back to the bar(the main menu). But, it’s not as accurate as the other one, making some parts of a song sound awful. Default value 3F80.
Pitch Reduce<->Pitch Increase[C.Guru]
8102285A ????
This one is a little different, and it’s really bizzare. 4700 is the default value. Setting it to 46FF will cause all sounds(excluding voice clips.) to pitch down, making it sound like it’s slowing down. (sfx do slow down, the music itself doesn’t really slow down.) values beyond 46FF makes it step even further down. Setting it to 4701 will pitch every bit of sound up.
Pitch Increase<->Pitch Reduce[C.Guru]
8102288A ????
does the same as the one above, only that it’s reversed.
Music Pitch Modifier 2[C.Guru]
81014784 25A4
81014786 ????
A little different to my first music pitch mod code. 0000 is default.
Examples: 0060 is like 3F88. 0120 is 3F98, and 0180 is 3FA0.
Detuned Music[C.Guru]
81014746 5723=default value-5823
8101474E 5721=default value-5821
Master Sounds Pitch Modifier fix V1.1[C.Guru]
810151D4 2704
810151D6 XXXX
81019DA6 3F80
This fixes that strange pitch-related bug heard in songs like Windy and Heist(multi) when the Pitch modifier for all sounds but speech is being altered. However, it won’t make any difference unless the player changes the 0000 for the 810151D6 line as well, as this is required. Example: if 81019DA6 is 3FA0, then 810151D6 has to be FE80. same for value 3F98, then the value for 810151D6 should be FEE0. It’s a bit tricky to know, even i myself haven’t really gotten much hang of it yet. Some sfx pitch bugs could still be present however.

Music Tempo Codes:
Music Tempo Modifier[C.Guru]
810183A6 ????
It only takes effect if you either enter an area where the music track changes, or if going back to the bar(the main menu). Default value is 3F80.
Music Tempo Modifier 2[C.Guru]
8102CAB0 ????
More stable than the previous code, and takes effect instantly. Note also that the length of sound effects is affected Default value 4974.

Music Codes:
“AAH” sound plays instantly at the great mighty poo[C.Guru]
81015052 0000
Makes TGMPoo’s “AAH” sound play repeatedly, i.e it’s heard during the entire song(excluding cutscenes.). This also affects other tracks, particularly the Windy track, where every variation which weren’t all heard, are now heard, all of them.
alternative music corruption code[C.Guru]
81015042 BF21
basically changes a few instruments in songs.
alternative music corruption code 2[C.Guru]
810150DE 3F23
Same as the other, but is not that high-sounding.
Alternative music corruption code 3[C.Guru]
81018B62 4721
It makes The Great Mighty Poo song not play. What else it does to other songs i don’t know.
Break the music[C.Guru]
D0042DA4 0002
81014E46 3FD0
This code just makes the current song playing hang up, the resulting noise may vary depending on song, and how you time the button press. D-pad left makes the song hang permanently, causing any noise to be left heard in the background. The only way to return it to normal is to reset the game.
corrupted music[C.Guru]
810144A2 00BE
Corrupts the music. Also makes the game slow down sometimes.(the music is barely heard)
Extremely Corrupted Music[C.Guru]
8101449C A3A2
Does the same, but more extreme this time. Can also SEVERELY slow down the game.
Freeze Music Timers[C.Guru]
D0042DA4 0002
8101A024 0000
D0042DA4 0004
8101A024 3328
Disables music based timers/events. Two notable examples are The Great Mighty Poo(Where you battle him.), and Rock Solid(Where everyone dances to the beats of the song, rhytmically). D-pad left disables it, D-pad down enables it.
Less corrupted music[C.Guru]
810144CA 5022
Corrupts the music somewhat, yet again.
music echo modifier[C.Guru]
81014EC4 3C06
81014EC6 000X
modifies how much echo will be heard in music.
Music instruments modifier V4(C.Guru)
81015118 2405
8101511A 00XX
Modifies the type of instrument playing in songs(affects all instruments). 03 means that the clarinet will replace the original instruments. 20 is cello. 0A for bees.
Music Loops Over Itself(C.Guru)
81018F06 0040
Makes the music loop over itself. Do try to avoid battling the Boiler boss with this code active, because after the track loops a number of times, the music will hang up, and it cannot be undone.(this may also apply to when Conker must take back Mrs Bees hive, but so far i haven’t encountered it.. Unless you use some code that makes Conker invincible.)
Music type modifier V2(C.Guru)
81014584 2408
81014586 YYYY
Modifies the type of variation in a song.(example; for the windy song, 15 is the bullfish area type.)
Music Volume Modifier[C.Guru]
8101485E ????
Adjusts the volume of the songs. Default value is 42FE
Note Length modifier(music)[C.Guru]
81014D54 2009
81014D56 XXXX
Modifies the length of notes in songs.
Randomly Generated Instruments[C.Guru]
8101514A 00A1
Um.. Just try it out.
Sound Corruption Code[C.Guru]
part 1
8101D38C 0000
8101D38E 0000
8101D3AC 0000
8101D3AE 0000
8101D3BC 3F80
8101D3BE 0000
8101D680 3C58
8101D682 F8D4
8101D684 BACD
8101D686 19E2
8101D688 3EFF
8101D68A E8B2
8101D68C 0000
8101D68E 0000
8101D690 BB39
8101D692 8652
8101D694 3EFF
8101D696 FE9A
8101D698 3AD7
8101D69A 0031
8101D69C 0000
8101D69E 0000
8101D6A0 BEFF
8101D6A2 E7F5
8101D6A4 BB3C
8101D6A6 4E50
8101D6A8 3C58
8101D6AA D279
8101D6AC 0000
8101D6AE 0000
8101D6BC 3F80
8101D6BE 0000
8101D6C0 3C5E
part 2
8101D6C2 2F82
8101D6C4 BACC
8101D6C6 DC7E
8101D6C8 3EFF
8101D6CA E794
8101D6CC 0000
8101D6D0 BB81
8101D6D2 470C
8101D6D4 3EFF
8101D6D6 FD98
8101D6D8 3ADA
8101D6DA F5E8
8101D6DC 0000
8101D6DE 0000
8101D6E0 BEFF
8101D6E2 E5DA
8101D6E4 BB82
8101D6E6 B6C9
8101D6E8 3C5D
8101D6EA F9B0
8101D6EC 0000
8101D6EE 0000
8101D6F0 41D0
8101D6F2 F69C
8101D6F4 3E19
8101D6F6 C378
8101D6F8 BF31
8101D6FA 0C81
8101D6FC 3F80
8101D6FE 0000
part 3
8101D700 3C6F
8101D702 A3F4
8101D704 BACB
8101D706 BF0C
8101D708 3EFF
8101D70A E3A3
8101D70C 0000
8101D70E 0000
8101D710 37A4
8101D712 22C4
8101D714 3EFF
8101D716 FFAF
8101D718 3ACB
8101D71A C22B
8101D71C 0000
8101D71E 0000
8101D720 BEFF
8101D722 E3F4
8101D724 B7D9
8101D726 68F4
8101D728 3C6F
8101D72A A3EA
8101D72C 0000
8101D72E 0000
8101D730 4257
8101D732 099C
8101D734 3EBD
8101D736 D3AD
8101D738 BFB8
8101D73A 6CBA
8101D73C 3F80
8101D73E 0000
part 4
8101D740 3C7C
8101D742 526A
8101D744 BABC
8101D746 BDA4
8101D748 3EFF
8101D74A E097
8101D74C 0000
8101D74E 0000
8101D750 B8D8
8101D752 668B
8101D754 3EFF
8101D756 FFAF
8101D758 3ACC
8101D75A 4119
8101D75C 0000
8101D75E 0000
8101D760 BEFF
8101D762 E0E8
8101D764 B91E
8101D766 7A74
8101D768 3C7C
8101D76A 50C1
8101D76C 0000
8101D76E 0000
8101D770 429D
8101D772 7F54
8101D774 3EBE
8101D776 7D87
8101D778 C00B
8101D77A 0461
8101D77C 3F80
8101D77E 0000
part 5
81013CDC 0000
81013CDE 0000
81013CEC 0000
81013CEE 0000
81013CFC 3F80
Corrupts the music for the most.(if you bring Conker to an area where he needs his gasmask, for example the Poo Mountain, the sounds will be a little fuzzy.) Due to it’s length, it’s safer to use it on emulator. If you wanna try it out on console, then just use 81013CDE 0000 alone(without the fuzzy sounds that i mentioned). It’s split into five parts because of limits.
Stop the music completely V2[C.Guru]
D0042DA4 0002
81013EDA 0038
D0042DA4 0008
81013EDA 0048
D-pad left=Off. D-pad up=On.
Stop the music for a short while when unpausing game(C.Guru)
D0042DA4 0002
81013EEE 008C
D0042DA4 0004
81013EEE 0000
D-pad left=On. D-pad down=Off.
Messed Up Music[C.Guru]
81018E96 FFFE
81012954 2407
81012956 0051
Really Messed Up Music[C.Guru]
81018E46 FFFB
81018E96 FFFF
8101448E 0009
81018EEA 0073
81018F0E 001D
81012954 2407
81012956 0051
Extremely Messed Up Music[C.Guru]
81018E96 FFFF
81018E46 FFE2
8101448E 0009
81018EEA 0071
81018F0E 001D
81012954 2407
81012956 0051
For all these music messing codes voices had to be turned off, because without the two bottom lines the game will crash, as the code somehow forces a random voice clip to play, even voices in regions outside of what’s really available in the game. Even though voices has been disabled, the game may still crash, depending on the track, so take caution!
Speaker Balance Modifier(Music)[C.Guru]
81014C60 2419
81014C62 00XX
00 – On Left Speaker Only
7F – On Right Speaker Only
If set to mono, the code won’t have any effect
If set to surround or Stereo, it will try to correct itself at most(Mostly **** and Plucker)
Fuzzy music[C.Guru]
81014C8C 240B
81014C8E 00XX
XX Amount to be applied
00 – OFF
01 and higher(up to 3F) – ON
Music modifier[C.Guru]
8100DC74 240E
8100DC76 00XX
81008BB0 2406
81008BB2 7FFF
810140AE 0001
81017D76 0000
8100CBFE 0000
Finally, the music modifier that everyones been waiting for.
Gameboy Music mod[C.Guru]
800D1CE5 0001
800D1CE7 00XX
Credit to the original hacker of the code, i only ported it to PAL, because one didn’t exist.
Sound Effects Codes:
footsteps sound modifier V2[C.Guru]
81012250 2404
81012252 0XXX
81012270 2405
81012272 0000
modifies the sfx for the footsteps a character makes.
SFX Modifier V2[C.Guru]
81017760 2425
81017762 0XXX
Modifies the sound effect for all sounds.
Separate sfx modifiers[C.Guru]
8100FE28 2418
810104C0 2405
81010598 2404
810106EC 2405
8101081C 2404
8101095C 2404
81010964 2404
81012278 3082
8100FE2A 0XXX
810104C2 0XXX
8101059A 0XXX
810106EE 0XXX
8101081E 0XXX
8101095E 0XXX
81010966 0XXX
8101227A FFFF
toggle sfx on/off[C.Guru]
D1042DA4 0200
81017786 4001
D1042DA4 0800
81017786 4000
Toggles sfx on and off. D-pad left=Off. D-pad up=On

Speech Codes:
Voice modifier V1[C.Guru]
81012954 2407
81012956 0XXX
Voices "Alien-Like" Language Effect Modifier[C.Guru]
810E14B0 ????
Default value i think is 3F80. Seems to be for an feature that was scrapped maybe?
Speech player hack[C.Guru]
81012954 2407
81012956 0XXX
81012970 2404
81012972 7FFF
D2042DA4 0008
810CC6F2 0001
D0042DA4 0008
810CC6F2 0194
Only works for player 1 though. Press d-pad Up, and release it to make the speech play(stay away from any nearby places where sounds occur, and also try to avoid moving your player character, if possible.)
Voices just bleeps[C.Guru]
8102A570 200C
8102A572 0000
Either requires resetting, or savestate reload.
Dark Scratches and beeps in voices[C.Guru]
8102AA1C 2006
8102AA1E 0000
Either requires resetting, or savestate reload.

Not Fitting Anywhere Else Codes:
All sounds skips over like a broken record[C.Guru]
D0042DA4 0002
81019966 6721
D0042DA4 0008
81019966 6821
Well, it sounds like it. Why i included button activators is because the game may freeze if it’s left on for too long. D-pad left turns on the effect, D-pad up turns it off.
NES like sounds V.1.1[C.Guru]
8102CD22 8000
8102CD26 0800
Excluding voices in cutscenes… Better try it out yourself, words alone can't simply explain all.
Sound And Music Only Consists Of Bleeps and Bloops[C.Guru]
810298E6 0060
810298EA 0480
81029916 0060
8102991E 0480
either reload a savestate, or reset the game to make the code take effect.