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Cheat Codes:Sonic & Knuckles

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Cheat Codes

These are cheat codes which can be accessed by inputting button sequences or by various other methods.

For cheat codes for Knuckles in Sonic 2, see Cheat Codes:Knuckles in Sonic 2.

Cheat Codes, Sonic & Knuckles Alone

SK level select.png
  • Zone Select: While in Mushroom Hill Zone, jump on to one of the hanging platforms, then press Left Left Left Right Right Right Up Up Up. A chime will sound. Press Start, then A to return to the title screen. Select a character and press A+Start. Keep in mind that Sonic 3 levels are not available and that your character isn't able to go to levels it doesn't normally go to in the run of the game (with the exception of Knuckles being able to go into Death Egg Zone via acts 1 or 2; his normal game ends with Sky Sanctuary Zone).
  • Debug mode: Contrary to popular belief, there IS a debug mode available for this game. However, you need the Sonic 3 cartridge or ROM to do this. Simply start up Sonic 3 & Knuckles, unlock the level select and debug mode codes for that game and then highlight any level in the Sound Test, hold A, press Start, and release A when Sonic appears. Turn into a monitor, and paste a lot of monitors until you see things start to disappear. Then revert back to Sonic, and Spin Dash into the monitors. The game will crash, and be buggy, if you're lucky. Press Start, and then press A if necessary. If you are lucky, the game will redirect to the Sonic & Knuckles title screen. Choose any character, hold A then press Start. You will be in the level select screen. Highlight any level, hold A, then press Start. Note that if you choose any level before Mushroom Hill Zone, you will go into Mushroom Hill Zone instead.
    • Note: After getting into Sonic and Knuckles debug mode, do the same thing with the monitors. If the game crashes, you will be in Sonic 3, but the S3K level select will show up. if you choose a non S3 level, it will put you in angel island. You also play as knuckles, but it will be glitchy. Repeat the monitor trick, and you will be back in S3K. You can cycle through the 3 games this way.

Cheat Codes, Sonic the Hedgehog 3 Locked-on

  • Zone Select: While in Angel Island Zone, jump on to one of the hanging platforms, then press Left Left Left Right Right Right Up Up Up. You will hear a chime. Press Start, then A to return to the title screen. A new option, "Sound Test", will appear below "Competition". Select that option to go to the Level Select screen.
  • Debug mode: Enter the Level Select screen, then enter Mushroom Hill Zone. Grab onto a hanging platform and press Left Left Left Right Right Right Up Up Up. You will hear a chime. Press A+Start to return to the title screen. Enter the Level Select, then select a level and press A+Start to start the level with Debug Mode.

In-level Functions

Debug

  • Press A to reverse gravity when in normal mode.
  • Press C+B to cycle through all mapping frames of the character when in normal mode.
  • Press B to toggle normal and debug mode.
    • Press A to advance forward through the debug object list.
    • Press A+C to advance backwards through the debug object list.
    • Press C to place the selected object at the current coordinates.
  • Current coordinates are designated by the top line of hex digits in the HUD.
  • Viewport coordinates are designated by the bottom line of hex digits in the HUD.

Slow-motion/Restart

  • During pause press A to fade to black and restart from the SEGA screen.
  • During pause press and hold B to enable slow-motion (this proceeds at half-speed for as long as the B button is held down).
  • During pause press C to advance one frame.

Game Enhancer Codes

These are cheat codes that can only be used with game enhancer devices. Support for these codes is available in most emulators.

Game Genie

Official Codes, Sonic & Knuckles Alone

Code Description Works in S&K Works in S3K
General codes
AFKT-AAG0 Start with 1 life. Yes No
AKKT-AAG0 Start with 2 lives. Yes No
AVKT-AAG0 Start with 4 lives. Yes No
AZKT-AAG0 Start with 5 lives. Yes No
A7KT-AAG0 Start with 7 lives. Yes No
BFKT-AAG0 Start with 9 lives. Yes No
DFKT-AAG0 Start with 25 lives. Yes No
GKKT-AAG0 Start with 50 lives. Yes No
NPKT-AAG0 Start with 99 lives. Yes No
K2WA-CA4J Infinite lives. Yes Yes

Official Codes, Sonic the Hedgehog 3 Locked-on

Code Description Works in S&K Works in S3K
General codes
AWXT-CA4C Don't lose rings when hit. Yes Yes
HXRT-AA6A Infinite time. Yes Yes
96BA-CAG6 + 98MA-CAF0 Keep elemental shields when hit. Yes Yes
AKVT-AA76 + AMNA-EA24 Keep rings between levels. Yes Yes
RHJA-E60L Bonus round always activated after every checkpoint. Yes Yes
RGSA-A6YY Only 1 blue sphere needed to get a chaos emerald. Yes Yes
ALNA-AACR Rings worth 2 in special stage. Yes Yes
ARNA-AACR Rings worth 3 in special stage. Yes Yes
AWNA-AACR Rings worth 4 in special stage. Yes Yes
A0NA-AACR Rings worth 5 in special stage. Yes Yes
BLNA-AACR Rings worth 10 in special stage. Yes Yes
NTPT-CA50 Rings aren't used up as Super (or Hyper) Sonic/Knuckles. Yes Yes
ACCT-CA2R Can't drown. Yes Yes
Sonic-specific codes
RENT-C6YA Can always double jump (can't use water shield or become Super Sonic). Yes Yes
RENT-C6V6 Can always use Fireball Spin Dash (can't double jump, bounce, or become Super Sonic). Yes Yes
AANA-CNA0 Jump a little lower (same height as Knuckles jump). Yes Yes
4ANA-CRA0 Jump a little higher. Yes Yes
2ANA-CWA0 Jump a lot higher. Yes Yes
AANA-C4A0 Jump really high. Yes Yes
AANA-DYA0 Jump ridiculously high. Yes Yes
A2NT-CAG6 Only 6 chaos emeralds needed to become Super Sonic. Yes Yes
AYNT-CAG6 Only 5 chaos emeralds needed to become Super Sonic. Yes Yes
ATNT-CAG6 Only 4 chaos emeralds needed to become Super Sonic. Yes Yes
ANNT-CAG6 Only 3 chaos emeralds needed to become Super Sonic. Yes Yes
AJNT-CAG6 Only 2 chaos emeralds needed to become Super Sonic. Yes Yes
AENT-CAG6 Only 1 chaos emerald needed to become Super Sonic. Yes Yes
AANT-CAG6 Become Super Sonic without any chaos emeralds. Yes Yes
NTNT-CAHL 100 rings needed to become Super Sonic instead of 50. Yes Yes
FANT-CAHL 40 rings needed to become Super Sonic. Yes Yes
DENT-CAHL 25 rings needed to become Super Sonic. Yes Yes
BJNT-CAHL 10 rings needed to become Super Sonic. Yes Yes
AENT-CAHL 1 ring needed to become Super Sonic. Yes Yes
AANT-CAGY + AAPA-CAB8 Become Hyper Sonic without any emeralds. Yes Yes
Knuckles-specific codes
TB5T-CNCR Jumps as high as Sonic (slightly higher than usual). Yes Yes
PV5T-CRCR High jump. Yes Yes
AB5T-CWCR Super jump. Yes Yes
AB5T-C2CR Mega jump. Yes Yes
AB5T-DTCR Orbital jump. Yes Yes
A36A-CACW Only 6 chaos emeralds needed to become Super Knuckles. Yes Yes
AZ6A-CACW Only 5 chaos emeralds needed to become Super Knuckles. Yes Yes
AV6A-CACW Only 4 chaos emeralds needed to become Super Knuckles. Yes Yes
AP6A-CACW Only 3 chaos emeralds needed to become Super Knuckles. Yes Yes
AK6A-CACW Only 2 chaos emeralds needed to become Super Knuckles. Yes Yes
AF6A-CACW Only 1 chaos emerald needed to become Super Knuckles. Yes Yes
AB6A-CACW Become Super Knuckles without any chaos emeralds. Yes Yes
NV6A-CADA 100 rings needed to become Super Knuckles instead of 50. Yes Yes
FB6A-CADA 40 rings needed to become Super Knuckles. Yes Yes
DF6A-CADA 25 rings needed to become Super Knuckles. Yes Yes
BK6A-CADA 10 rings needed to become Super Knuckles. Yes Yes
AF6A-CADA 1 ring needed to become Super Knuckles. Yes Yes
AB6A-CACL + AB6A-CAHR Become Hyper Knuckles without any emeralds. Yes Yes

Unofficial Codes

Code Description Works in S&K Works in S3K
General codes
RFLA-A6W4 Enable Level Select (A+Start at Title Screen). Yes No
RFTT-A6XW Enable Debug Mode (A+Start at Title Screen). Yes Yes
AVFA-AR74 Can Access 'Sound Test' Menu From Title Screen. No Yes
AKEA-CA3W Tails never gets tired of flying No Yes
AA7T-AAM2 Better night time No Yes
BCTT-LA3Y + BA8T-NA24 Knuckles can fight Knuckles. Yes Yes
ABZT-AA5Y + PKZT-B950 Tails follows Knuckles. No Yes
REBA-C6V6 Invincible against dynamic objects (bullets, enemies, for example), except Knuckles. Yes Yes
RZBA-E6YA Invincible against static objects (spikes, for example). Yes Yes
ABTA-NA7Y Invincible against Knuckles. Yes Yes
PJAA-CA8C Destroy enemy upon touching it (except Knuckles). Yes Yes
ABTT-NA3G Damage Knuckles upon touching him. Yes Yes
AAPT-CAB8 Don't use up rings to maintain the transformation of any Super/Hyper character. Yes Yes
CLRA-BA0Y Get One Emerald To Get Them All. Yes Yes
9WSA-BCET Only One Blue Sphere Needed To Win Emerald. Yes Yes
CXLA-EA7Y Bonus stage is always slot machine. Yes Yes
RHLA-E6ZY + BMLA-EA78 Bonus stage is always magnetic orbs. Yes Yes
RHLA-E6ZY + RHLA-E6Z8 Bonus stage is always gumball machine. No Yes
REPA-C6YR + REPA-C6YT + REPA-C6YW + REPA-C6YY
+ RFJT-C61Y + RFJT-C610 + RFJT-C612 + RFJT-C614
+ RF6T-C6V0 + RF6T-C6V2 + RF6T-C6V4 + RF6T-C6V6
+ RHPA-C6V0 + RHPA-C6V2 + RHPA-C6V4 + RHPA-C6V6
+ RHPT-C6VE + RHPT-C6VG + RHPT-C6VJ + RHPT-C6VL
+ RFPT-T6YC
Disable Super Transformation Music Yes Yes
NTBT-CB50 Never Die (except by drowning) Yes Yes
Sonic-specific codes
JAGA-CA98 Speed shoes don't run out with time. Yes Yes
AANT-CAHL Become Super/Hyper Sonic with 0 rings. Yes Yes
AANT-CAG6 Become Super Sonic without collecting Emeralds first. Yes Yes
AANT-CAGY + AAPA-CAB8 Become Hyper Sonic without collecting Emeralds first. Yes Yes
Tails-specific codes
JA6T-CA5E Speed shoes don't run out with time. No Yes
ABJT-CACJ Become Super Tails with 0 rings. No Yes
ABJT-CACA Become Super Tails without collecting emeralds first. No Yes
Knuckles-specific codes
HKXA-CA7T Speed shoes don't run out with time. Yes Yes
AB6A-CADA Become Super/Hyper Knuckles with 0 rings. Yes Yes
AB6A-CACW Become Super Knuckles without collecting Emeralds first. Yes Yes
AB6A-CACL + AB6A-CAHR Become Hyper Knuckles without collecting Emeralds first. Yes Yes
AB6A-DAJC Knuckles can float, push any jump button. Yes Yes
AP2A-DAR2 Knuckles Spin dash goes nowhere. Yes Yes
APYA-DAGC Knuckles has a shorter glide. Yes Yes
AP2A-DAEE Knuckles flies upwards. Yes Yes
1APT-CBHO Press down for a chaos emerald Yes Yes

Pro Action Replay

Unofficial Codes

Code Description Works in Gens
009760:6048 Red Spheres have no effect in special stages Yes
0097AE:6672 + 0097C8:4E75 Collision disabled for bumpers in special stage Yes
FFFE12:0063 Always have 99 lives No
FFFE21:0063 Always have 99 rings No
FFFE25:0000 Infinite time No
FFB038:00xx Have character ID of (00=Sonic, 01=Tails, 02=Knuckles) (controls things like wall-breaking and character-specific boss fights). No
FFFF0B:00xx Character modifier (00=Sonic & Tails, 01=Sonic, 02=Tails, 03=Knuckles, 04=Blue Knuckles). No
FFFFE0:0101 Level select and slow motion enabled. Yes
00380A:???? + FFF65F:0004 Sonic Color modifier(found by tailsisdumb make sure to replace the ???? with any 4-digit number) Yes
00381E:0006 Tails is affected by above code(found by tailsisdumb make sure above code is enabled) Yes
FFFFDA:0001 Debug mode always enabled (without holding A during level load) No
FFE439:0001 Only one blue sphere required to get the emerald (turn off as soon as special stage HUD appears or else special stage results screen won't register emerald) No
FFFFB0:0007 Have 7 Chaos Emeralds. No
FFFFB0:0707 Have 7 Chaos and Super Emeralds. Yes
FFFFB2:0?0? + FFFFB4:0?0? + FFFFB6:0?0? + FFFFB8:0?0? Emeralds in SRAM modifier. Replace ? with 0 = No Emeralds, 1 = All Chaos Emeralds, 2 = Hidden Palace Emeralds, 3 = Hyper Emeralds. Verified to work in Sonic 3 & Knuckles only.
006B68:0A94 Play as red Sonic (choosing to play as Knuckles produces Sonic with Knuckles' palette)

~courtesy of ShanMan

Yes
FFFE10:XXYY Stage/Act Modifier. X=Level; Y=Act. Set Y to 00 for Act 1, and to 01 for Act 2.
ID Name Works in S&K Works in S3K
00 Angel Island No Yes
01 Hydrocity No Yes
02 Marble Garden No Yes
03 Carnival Night No Yes
04 Flying Battery Yes Yes
05 Icecap No Yes
06 Launch Base No Yes
07 Mushroom Hill Yes Yes
08 Sandopolis Yes Yes
09 Lava Reef Yes Yes
0A Sky Sanctuary (Act 1 = Sonic / Act 2 = Knuckles) Yes Yes
0B Death Egg Yes Yes
0C Doomsday Yes Yes
0D Sonic/Tails End Sequence (must be set to Act 2) Yes Yes
13 Gumball Machine - Sonic 3 Bonus Stage No Yes
14 Glowing Spheres - S&K Bonus Stage Yes Yes
15 Slot Machine - S&K Bonus Stage Yes Yes
16 Act 1 = Lava Reef Act 2 boss / Act 2 = Hidden Palace Yes Yes
17 Act 1 = 2nd Death Egg Act 2 Boss / Act 2 = Master Emerald Shrine Yes Yes
Garbled in 1P, normal in 2P
0E Azure Lake No Yes
0F Balloon Park No Yes
10 Desert Palace No Yes
11 Chrome Gadget No Yes
12 Endless Mine No Yes
Yes

Resources

  • GameFAQs - Regular cheat codes.
  • The GSHI - Official Game Enhancer codes separated from User made codes.


1

Sonic the Hedgehog 3 + Sonic & Knuckles
Sonic 3 & Knuckles
S3k title.png

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