Sonic The Hedgehog 2 (Game Gear)

Game Genie Codes

Note:
A Game Genie cartridge is required to use the codes featured below.

Unlimited lives:
009-04F-3BE

Invincible after 1 ring:
A78-92C-19E
Not effective on Act 3.

Each ring worth 8 points:
086-5ED-E6E

All codes above from WendyGayle

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

Keep 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

Disable timer:
001-12D-3B7

Start on Act 2:
3E2-E4D-3B4
012-E5D-E69

Start on Act 3:
3E2-E4D-3B4
022-E5D-E69