Sega Game Gear · cheat codes
Sonic the Hedgehog 2 cheats & codes
50 codes for Sonic the Hedgehog 2 on the Sega Game Gear, including Game Genie, Action Replay codes.
Sonic the Hedgehog 2 Game Genie codes
How to use: Galoob's Game Genie plugged in between the console and the cartridge. Type the codes in on its start-up screen, then press Start. In emulators, add them through the cheat menu and choose the Game Genie format if asked.
| Effect | Code |
|---|---|
| Infinite Lives | 009-04F-3BE |
| Invincible After 1 Ring (Except On Act 3) | A78-92C-19E |
| Each Ring Worth 2 Points | 026-5ED-E6E |
| Each Ring Worth 3 Points | 036-5ED-E6E |
| Each Ring Worth 4 Points | 046-5ED-E6E |
| Each Ring Worth 5 Points | 056-5ED-E6E |
| Each Ring Worth 6 Points | 066-5ED-E6E |
| Each Ring Worth 7 Points | 076-5ED-E6E |
| Each Ring Worth 8 Points | 086-5ED-E6E |
| Don't Lose Rings When Hit | 3A7-E4C-2A2 |
| Start With 1 Life | 012-B8D-E66 |
| Start With 5 Lives | 052-B8D-E66 |
| Start With 9 Lives | 092-B8D-E66 |
| Stop Timer | 001-12D-3B7 |
| Start On Act 2 | 3E2-E4D-3B4
012-E5D-E69 |
| Start On Act 3 | 3E2-E4D-3B4
022-E5D-E69 |
Sonic the Hedgehog 2 Action Replay codes
How to use: Datel's Action Replay sat between the console and the game. Enter codes on its menu before starting the game, or paste them into your emulator's cheat menu.
| Effect | Code |
|---|---|
| Infinite Rings | 00D2-9963 |
| Infinite Lives | 00D2-9809 |
| Better Invincibility | 00D3-A915 |
| Level Select - Zone | 00D2-950X |
| Level Select - Act | 00D2-960Y |
| Keeps Time At Zero (Seconds) | 00D2-B900 |
| Keeps Time At Zero (Minutes) | 00D2-BA00 |
| High Gravity | 00D5-18FF |
| Glider From Start | 00D5-0213 |
| Invisible Sonic | 00D5-2876 |
Sonic the Hedgehog 2 Other codes
How to use: Additional codes collected by the community. Enter them through your emulator's cheat menu, choosing the format that matches your emulator.
| Effect | Code |
|---|---|
| Enable Stage Select | 005-43D-A2A |
| Infinite lives | 009-04F-3BE |
| Invincible after 1 ring | A78-92C-19E |
| Each Ring Worth ?? Points | 016-5ED-E6E |
| Don't lose rings when hit | 3A7-E4C-2A2 |
| Start With ?? Lives | 012-B8D-E66 |
| Stop timer | 001-12D-3B7 |
| Start on Act 2 | 3E2-E4D-3B4
012-E5D-E69 |
| Start on Act 3 | 3E2-E4D-3B4
022-E5D-E69 |
| Jump In Midair | 00A-A7C-E69 |
| Invincibility | C37-77C-E61
C37-B9C-C41
277-BAC-4CA |
| Infinite Rings | 00D2-9963 |
| Infinite Lives | 00D2-9809 |
| Better Invincibility | 00D3-A915 |
| Level Select - Zone | 00D2-9500 |
| Keeps Time At Zero (Seconds) | 00D2-B900 |
| Keeps Time At Zero (Minutes) | 00D2-BA00 |
| High Gravity | 00D5-18FF |
| Glider From Start | 00D5-0213 |
| Invisible Sonic | 00D5-2876 |
| Don't Die When Hit With No Rings | BC7-BAC-4CA
377-BBC-08A |
| Zone Select after Title Screen | 00D1-2CB6 |
| Hold A or B to Moonjump (period of time) | DEC-10A |
| Hold A or B to Moonjump (let go to land) | 643-DFC-19A |
Using cheats today
Original cheat devices like the Game Genie, Action Replay and GameShark still turn up second-hand and work with original cartridges. Most modern emulators also have a built-in cheat menu that accepts these formats, so you can toggle codes on and off without extra hardware. Codes can differ between regional releases and revisions of a game; if one doesn't work, try the code list for another version.
Cheats can corrupt save files in rare cases, so back up your saves before experimenting.
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Cheat codes are from the libretro-database community collection, used under CC BY-SA 4.0; the code tables on this page are shared under the same license. Codes are provided as-is: some may not work on every version of the game.