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From Sonic Retro

Cheat Codes

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

Sonic the Hedgehog

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).

On all codes containing C's, the C's 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.

Sonic the Hedgehog 2

Note: in cheat codes, + signifies that the buttons must be held simultaneously.

• Zone Select: Play tunes 19, 65, 09, 17 on the options screen, + on title screen.
• 14 Continues: Play tunes 01, 01, 02, 04 on the options screen. An incorrect sound command is issued, causing Oil Ocean Zone music to continue playing until a reset.
• Super Sonic: Play tunes 04, 01, 02, 06 on the zone select sound test, an emerald sound triggers, select zone, hold until Sonic appears.
• Debug mode + Slow-motion/Restart: Play tunes 01, 09, 09, 02, 01, 01, 02, 04 on the zone select sound test, a ring sound triggers, select zone, hold until Sonic appears.
• Super Sonic + Debug: Play tunes 01, 09, 09, 02, 01, 01, 02, 04, 01, 02, 06 on the zone select sound test, a ring sound triggers after 04 and an emerald sound triggers after 06, select zone, hold until Sonic appears.
• Change Tails' name to Miles in game above lives: Press at the title screen.

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 right after the SEGA screen.
Press and hold to enable slow-motion (proceeds at half speed or 15fps as long as you keep holding ).
Press to advance one frame.

Dr. Robotnik's Mean Bean Machine

- Red Bean
- Purple Bean
- Green Bean
- Yellow Bean
- Blue Bean
- Refugee Bean
- Has Bean

Easy Mode Passwords

Normal Mode Passwords

Hard Mode Passwords

Hardest Mode Passwords

Pro Action Replay

Unofficial Sonic the Hedgehog Codes

Unofficial Sonic the Hedgehog 2 Codes

Code	Description
FFFE12:0009	Infinite Lives.
FFFE20:00C8	Infinite Rings.
FFB030:00FF	Invincibility For Sonic (Enemies Can't Touch You/Can't collect Rings).
FFB070:00FF	Invincibility For Tails (Enemies Can't Touch You).
FFB028:FA	Infinite Time Underwater For Sonic.
FFB068:FA	Infinite Time Underwater For Tails.
FFF761:6410	Sonic has Super Speed.
FFFEC1:6410	Tails has Super Speed.
FFB02B:01	Always have Shield.
FFFE19:01	Play As Super Sonic (No Powers).
FFF730:00	Disable Water.
FFF711:??	HUD Display Modifier (00 = Off, 01 = On).
FFFFB2:01	Enable Debug Mode.
FFFFB0:01	Enable Stage Select ( + on Title Screen).
FFFE10:XXYY	Stage/Act Modifier (XX = Zone, YY = Level). 00 - Emerald Hill 04 - Metropolis 06 - Wing Fortress 07 - Hill Top 08 - Hidden Palace (!) 0A - Oil Ocean 0B - Mystic Cave 0C - Casino Night 0D - Chemical Plant 0E - Death Egg 0F - Aquatic Ruin
FFB461:01	Defeat Final Stage Bosses With 1 Hit.
FFB521:01	Defeat Stage 1 Robotnik With 1 Hit.
FFB621:01	Defeat Stage 2 Robotnik With 1 Hit.
FFB721:01	Defeat Stage 3 Robotnik With 1 Hit.
FFB821:01	Defeat Stage 4 Robotnik With 1 Hit.
FFB921:01	Defeat Stage 5 Robotnik With 1 Hit.
FFBA21:01	Defeat Stage 6 Robotnik With 1 Hit.
FFBB21:01	Defeat Stage 7 Robotnik With 1 Hit.
FFBC21:01	Defeat Stage 8 Robotnik With 1 Hit.