Cheat Codes:Sonic the Hedgehog 2 (8-bit)
From Sonic Retro
These are cheat codes which can be accessed by inputting button sequences or by various other methods.
Pressing and at the same time on the D-Pad will result in incredible acceleration and speed to the left. This is mainly useful in emulation (and has been extensively used in the Tool-Assisted Speedrun), while it's unfeasible on a real unmodified console.
Cheat Codes, Game Gear
- Zone Select: When turning on the game hold diagonally on the D-Pad and all of the Game Gear buttons until 2 ring noises chime.
Cheat Codes, Master System
- Zone Select: When turning on the game hold diagonally on the D-Pad and all of the Master System buttons until 2 ring noises chime.
Cheat device codes
These are cheat codes that can only be accessed with game enhancer devices. Support for these codes is available in most emulators.
Official Codes, Game Gear Version
|012-B8D-E66||Start with 1 life.|
|052-B8D-E66||Start with 5 lives.|
|092-B8D-E66||Start with 9 lives.|
|A78-92C-19E||Invincible after 1 ring (Except on act 3).|
|026-5ED-E6E||Each ring worth 2.|
|036-5ED-E6E||Each ring worth 3.|
|046-5ED-E6E||Each ring worth 4.|
|056-5ED-E6E||Each ring worth 5.|
|066-5ED-E6E||Each ring worth 6.|
|076-5ED-E6E||Each ring worth 7.|
|086-5ED-E6E||Each ring worth 8.|
|3A7-E4C-2A2||Don't lose rings when hit.|
|3E2-E4D-3B4 + 012-E5D-E69||Start on Act 2.|
|3E2-E4D-3B4 + 022-E5D-E69||Start on Act 3.|
Pro Action Replay
Unofficial Codes, Game Gear and Master System Version 1.0 and 2.2
|00D3A9:15||Become Invincible After Being Hit.|
|00D299:63||Infinite Rings (Press button 1 at end of level during score totaling).|
|00D2BA:00||Keeps Time At Zero (Minutes).|
|00D2B9:00||Keeps Time At Zero (Seconds).|
|00D295:0?||Zone Select (Enable switch after the first 2 screens but before the level starts, after the level starts disable).
|00D296:0?||Act Select (Enable switch after the first 2 screens but before the level starts, after the level starts disable).
|00D502:13||Start with Glider.|
|Sonic the Hedgehog 2 (8-bit)|