Action Replay Codes [US]

Sonic the Hedgehog 2 - Action Replay Codes [US]

The following are known Action Replay Codes for Sonic the Hedgehog 2 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. Enable Debug Mode (On An Actual System)
    003B98:0001
  4. Infinite Rings 2
    FFFE20:00C8
  5. Infinite Lives
    FFFE12:0009
  6. Stage/Act Modifier 3
    FFFE10:XXYY
  7. Always Have 224 Rings (Official Code)
    FFFE21:00E0
  8. Unlimited Time
    FFFE24:0007
  9. Super Speed! [Sonic]
    FFF761:6410
  10. Super Speed! [Tails]
    FFFEC1:6410
  11. Invincibility For Sonic (Enemies Can’t Touch You) 4
    FFB030:FF
  12. Invincibility For Tails (Enemies Can’t Touch You)
    FFB070:FF
  13. Invincibility For Sonic (Always Have Shield) 5
    FFB02B:01
  14. Invincibility For Tails (Always Have Shield)
    FFB06B:01
  15. Infinite Time Underwater For Sonic
    FFB028:FA
  16. Infinite Time Underwater For Tails
    FFB068:FA
  17. Defeat Stage 1 Robotnik With 1 Hit
    FFB521:01
  18. Defeat Stage 2 Robotnik With 1 Hit
    FFB621:01
  19. Defeat Stage 3 Robotnik With 1 Hit
    FFB721:01
  20. Defeat Stage 4 Robotnik With 1 Hit
    FFB821:01
  21. Defeat Stage 5 Robotnik With 1 Hit
    FFB921:01
  22. Defeat Stage 6 Robotnik With 1 Hit
    FFBA21:01
  23. Defeat Stage 7 Robotnik With 1 Hit
    FFBB21:01
  24. Defeat Stage 8 Robotnik With 1 Hit
    FFBC21:01
  25. Defeat Final Stage Bosses With 1 Hit
    FFB461:01
  26. Enable Super Sonic (All Chaos Emeralds Collected)
    FFFFB1:07
  27. Switch F/X On For Levitate Jump For Sonic
    FFB012:FE
  28. Switch F/X On For Levitate Jump For Tails
    FFB052:FE
  29. Hyper Mode P1
    FFB01E:00
  30. Hyper Mode P2
    FFB05E:00
  31. Sonic Color Modifier 6
    FFFB04:??
    FFFB05:??
    FFFB06:??
    FFFB07:??
    FFFB08:??
    FFFB09:??
    FFFB0A:??
    FFFB0B:??
  32. Sonic & Tails Sneaker Color Modifier (Base Color)
    FFFB19:??
    FFFB1A:??
    FFFB1B:??
  33. HUD Display Modifier 7
    FFF711:??
  34. Rings Multiplier 8
    FFF710:00
  35. Warp To End of Stage P1 9
    FFB008:3C
  36. Warp To End of Stage P2 10
    FFB048:3C
  37. Play As Super Sonic (No Powers)
    FFFE19:01
  38. Disable Water
    FFF730:00
  39. Glowing Sonic
    FFF65F:FF

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. 00 – Emerald Hill
    01 – [glitch] Emerald Hill
    02 – [glitch] Emerald Hill
    03 – [glitch] Emerald Hill
    04 – Metropolis
    05 – Metropolis [3]
    06 – Wing Fortress
    07 – Hill Top
    08 – Hidden Palace (!)
    09 – [glitch] Emerald Hill
    0A – Oil Ocean
    0B – Mystic Cave
    0C – Casino Night
    0D – Chemical Plant
    0E – Death Egg
    0F – Aquatic Ruin

    Quantity Digits for “yy”(act):

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

    Not all stages have acts 2 or 3.

  4. Switch effects off to collect rings.
  5. Switch effects off before you see the Sega logo to avoid freezing.
  6. The third, fifth, and seventh lines are optional.
  7. Also affects the rings. You can still collect them.

    00 – Off
    01 – On

  8. Cheesy, yet satisfying. Since the rings are loading over each other all the time, there is a major slowdown in the game speed.
  9. Turn off after you reach there.
  10. 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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