Action Replay Codes [US]

Sonic the Hedgehog - 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

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

Footnotes

  1. At the title screen, hold the A button and push Start to enter the stage select menu.
  2. This code also allows you to pass the special stages with ease, and always get the Chaos Emerald at the end.
  3. 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.

  4. 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.
  5. When you press Start you’ll be prompted by a Level Select screen that enables you to choose any level.
  6. Switch effects off to collect rings.
  7. The third, fifth, and seventh lines are optional.
  8. Turn off after you reach there.
These codes have been collected from around the web and all credit goes to the original poster of the code. Notes associated with any code may be written by the original code creator. Some notes have been added or modified from their original source.

Do you know any additional codes for this game? Is there an error listed above? Let us know about it and we’ll update the list.

Code Indexes for SEGA Genesis / Mega Drive Want an Action Replay for SEGA Genesis? Click here to find it on Amazon!

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