Cheat Codes:Sonic the Hedgehog (16-bit)

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1 Cheat Codes
2 Game Enhancer Codes
- 2.1 Game Genie
  - 2.1.1 Official Codes
  - 2.1.2 Unofficial Codes
- 2.2 Pro Action Replay
  - 2.2.1 Unofficial Codes
3 Resources

Cheat Codes

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

World Version

Level select.

From title screen

Zone Select: +, select zone.
Debug mode: +, hold until Sonic appears.
Zone Select + Debug Mode: +, select zone, hold until Sonic appears (the extra is to force the cheat detection code to reset itself).
Messed Up Demo Mode: While the demo is playing, hold ++. Sonic will get confused, lose his place, and possibly die.

On all codes containing Cs, the Cs can be input anywhere during the sequence.

Japanese Version

From title screen

Note: The console's region must be set to Japan; otherwise, the International codes are used.

Zone Select: +, select zone
In-level Functions: +, select zone, hold until Sonic appears
Zone Select + In-level Functions: +, select zone, hold until Sonic appears (the extra is to force the cheat detection code to reset itself)
Staff Roll and Ending Sequence from Level Select: +
- Alternate method: , wait until the demo starts, press to stop the demo, enter Zone Select cheat.
- In the Sound Select, select 9E and press // to go to the Staff Roll, or select 9F and press // to go to the Ending Sequence (which will lead to the Staff Roll).
Hidden Japanese Credits Screen: , hold +++ while demo starts
- The Credits translate to:

Position	Person
Program	Naka Yuuji
Plan	Yasuhara Hirokazu
Design	Ooshima Naoto Ishiwatari (Jina) Kataoka Rieko
Sound Produce	Nakamura Masato
Sound Program	Kubota Hiroshi Makino Yukifumi

On all codes containing Cs, the Cs can be input anywhere during the sequence.

In-level Functions, all versions

Debug

Press to toggle normal and debug mode.
Press to advance forward through the debug object list.
Press + to advance backwards through the debug object list.
Press 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 to fade to black and restart from the "SONIC TEAM PRESENTS" screen.
During pause press and hold to enable slow-motion (this proceeds at half-speed, or 15fps, for as long as you hold the button).
During pause press 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

Code	Description
ATBT-AA32	Master Code (Not needed in emulators).
AE3T-AACL	You start with 1 life.
AY3T-AACL	You start with 5 lives.
AE0T-CABE	Once you gain Invincibility, you stay invincible until the stage ends, or when you die.
AE0T-CABY	Once you gain Speed Shoes, you keep them until the stage ends, or when you die.
SCRA-BJX0	Each ring is worth 2.
SCRA-BNX0	Each ring is worth 3.
SCRA-BTX0	Each ring is worth 4.
SCRA-BYX0	Each ring is worth 5.
SCRA-B2X0	Each ring is worth 6.
SCRA-B6X0	Each ring is worth 7.
SCRA-BAX0	Each ring is worth 8.
SCRA-B9X0	Each ring is worth a crazy amount of rings.
GJ6A-CA7A	Infinite lives.
AJ3A-AA4G	Access to the Level Select menu.
AY3T-BA4R	Start with 5 Chaos Emeralds in possession.
DDLT-AAGL	Jump higher than your regular jump.
KDLT-AAGL	Jump lower than your regular jump.
BDLT-AAGL	Jump VERY high and "float" in the air.
NCLT-BYE6	Some Crabmeats go berserk.
NCLT-B9E6	Some Crabmeats disappear altogether.

Unofficial Codes

Code	Description
663T-BA4R	Max out score with one kill.
663T-B64R	Start with 2 continues.
A23T-BA4R	Start with all Chaos Emeralds.
AE2T-AAAL	Enable Debug mode.
GLRT-AADY	Ring count resets to 50 if Hit (Must have at least 1 ring).
NRRT-AADY	Ring count resets to 99 if Hit (Must have at least 1 ring).
AA2A-ACC8	Start on Labyrinth Zone.
AA2A-AEC8	Start on Marble Zone.
AA2A-AGC8	Start on Starlight Zone.

Pro Action Replay

Unofficial Codes

Code	Description
00A35E:6042	Every Monitor Powerup gives Speed Shoes.
FFFE20:00C8	Infinite Rings (Turn off before passing end of level sign).
FFFE15:00FA	Never run out of air Underwater.
FFFE2C:0001	Always have Shield.
FFFE24:0000	Infinite Time.
FFFE2D:0001	Invincibility (Monitor Effect without speed boost).
FFFFD0:0100	Enable Stage Select (+ on Title Screen).
FFFE10:XXYY	Stage/Act Modifier (XX = Zone, YY = Level). 00 - Green Hill Zone 01 - Labyrinth Zone (Act 4 / 03 = Scrap Brain Zone Act 3) 02 - Marble Zone 03 - Star Light Zone 04 - Spring Yard Zone 05 - Scrap Brain Zone (Act 3 / 02 = Final Zone)