Action Replay Codes [US]

The following are known Action Replay Codes for Sonic the Hedgehog on SEGA Genesis / Mega Drive (Genesis).

The codes should work with the region specified but may work for other regions as well.

Device Compatibility: Action Replay

• Enable Stage Select 1
  FFFFD0:0100
• Enable Debug Mode
  FFFFFA:0100
• Infinite Rings 2
  FFFE20:00C8
• Infinite Lives
  FFFE12:0009
• Stage/Act Modifier 3
  FFFE10:xxyy
• Makes Sonic Invulnerable To Enemies, Bullets, And Spikes Until He Picks Up Another Shield
  0039F0:11C1
• Aerial View of A Level 4
  0039FC:31C1
• Gives Sonic Turbo Shoes With Every TV He Breaks
  00A35E:6042
• Begin With Several Hundred Rings On Each Level 5
  003242:6010
• Begin The Game With 99 Lives
  00334A:0063
• Infinite Lives
  0138A0:6032
• Super Speed!
  FFF761:6411
• Invincibility (Enemies Can’t Touch You) 6
  FFD031:FF
• Invincibility (Always Have Shield)
  FFFE2C:00
• Invincibility (Starman Effect)
  FFFE2D:01
• Set Total Time To 0:01
  FFFE24:00
• Infinite Time Underwater For Sonic
  FFFE15:FA
• Defeat Stage 1 Robotnik Boss With 1 Hit
  FFD921:01
• Defeat Stage 2 Robotnik Boss With 1 Hit
  FFD821:01
• Defeat Stage 3 Robotnik Boss With 1 Hit
  FFDA21:01
• Defeat Stages 4 & 5 Robotnik Bosses With 1 Hit
  FFD861:01
• Defeat Final Stage Robotnik Boss With 1 Hit
  FFFE5F:01
• Set All Chaos Emeralds
  FFFE57:06
• Switch F/X On For Levitate Jump
  FFD012:FE
• Faster Music
  FFF001:00
• Hyper Mode (Sonic)
  FFD01E:00
• Sonic Color Modifier 7
  FFFB04:??
  FFFB05:??
  FFFB06:??
  FFFB07:??
  FFFB08:??
  FFFB09:??
  FFFB0A:??
  FFFB0B:??
• Sonic Sneaker Color Modifier (Base Color)
  FFFB19:??
  FFFB1A:??
  FFFB1B:??
• Warp To End of Stage 8
  FFD008:00

Footnotes

• At the title screen, hold the A button and push Start to enter the stage select menu.
• This code also allows you to pass the special stages with ease, and always get the Chaos Emerald at the end.
• Quantity Digits for “xx”(stage):

  00 – Green Hill
  01 – Labyrinth
  02 – Marble
  03 – Star Light
  04 – Spring Yard
  05 – Scrap Brain
  06 – ‘Zone’
  07 – Final (?)

  Quantity Digits for “yy”(act):

  00 – Act 1
  01 – Act 2
  02 – Act 3

  Not all stages have acts 2 or 3.

• You can also place objects by pressing Button A and placing them with Button C. When you’re finished press Button B and you’ll continue.
• When you press Start you’ll be prompted by a Level Select screen that enables you to choose any level.
• Switch effects off to collect rings.
• The third, fifth, and seventh lines are optional.
• Turn off after you reach there.

Game Genie Codes

The following are known Game Genie Codes for Sonic the Hedgehog on SEGA Genesis.

• Master Code – Must Be On
  ATBT-AA32
• Start With 1 Life
  AE3T-AACL
• Start With 5 Lives
  AY3T-AACL
• Once Invincible, Stay Invincible
  AE0T-CABE
  Note: This will last for the remainder of the current level or upon death.
• Each Ring Counts As 2
  SCRA-BJX0
• Each Ring Counts As 3
  SCRA-BNX0
• Each Ring Counts As 4
  SCRA-BTX0
• Each Ring Counts As 5
  SCRA-BYX0
• Each Ring Counts As 6
  SCRA-B2X0
• Each Ring Counts As 7
  SCRA-B6X0
• Each Ring Counts As 8
  SCRA-BAX0
• Infinite Lives
  GJ6A-CA7A
• Level Select Menu
  AJ3A-AA4G
• Start With 5 Chaos Emeralds
  AY3T-BA4R
• Super Jump
  DDLT-AAGL
• Skywalking
  BDLT-AAGL
• Low Jump
  KDLT-AAGL
• Once You Have Shoes, Keep Shoes For The Rest Of Stage Or Until You Die
  AEOT-CABY
• Start With All Chaos Emeralds
  A23T-BA4R
• Never Lose Rings
  AWRT-AA5W
• Start With 2 Continues
  663T-B64R
• Kill The First Enemy And Get 9,999,999 Points!
  663T-BA4R
• Get Rings From Computers Only
  SCRA-BZX0

When using the next 8 codes, if playing on an emulator you may need to reset the game after enabling these codes.

• Enable Debugger
  AE2T-AAAL
• Start On Level Note
  N/A
• Start On Level 2 (Labyrinth Zone)
  AA2A-ACC8
• Start On Level 2, Act 2 (Labyrinth Zone, Act 2)
  AE2A-ACC8
• Start On Level 3 (Marble Zone)
  AA2A-AEC8
• Start On Level 4 (Star Light Zone)
  AA2A-AGC8
• Infinite Lives (Different Code)
  RE3T-A6WJ
• Ring Count Goes To 50 After Getting Hit
  GLRT-AADY
• Ring Count Goes To 99 After Getting Hit
  NRRT-AADY