Cheats for Sonic The Hedgehog

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Master System

Goal Sign tricks

Super Ring

Clear the stage with 0, 10, 20, 30 or 40 rings.

Special Stage

Clear the stage with 50 or more rings.

1-UP

Green Hill Zone Act 1: Clear the stage with anywhere between 11..19 rings.
Green Hill Zone Act 2: Clear the stage with 21..29 rings.
Bridge Zone Act 1: Clear the stage with 41..49 rings.
Bridge Zone Act 2: Clear the stage with 11..19 rings.
Jungle Zone Act 1: Clear the stage with 31..39 rings.
Jungle Zone Act 2: Clear the stage with 41..49 rings.
Labyrinth Zone Act 1: Clear the stage with 21..29 rings.
Labyrinth Zone Act 2: Clear the stage with 31..39 rings.
Scrap Brain Zone Act 1: Clear the stage with 11..19 rings.
Scrap Brain Zone Act 2: Clear the stage with 21..29 rings.
Sky Base Zone Act 1: Clear the stage with 41..49 rings.

Action Replay codes

00D2AAXX

Keep XX rings (replace the XX on the code for a number from 00 to 99)

00D24609

Infinite lives (keeps showing 9)

00D28409

Infinite continues (not that you need them)

00D2D000

Infinite time (locks the actual timer, not the minutes/seconds)

00D2CEYX

Keep the timer at X minutes (replace the YX on the code for a number from 00 to 09. Entering 09 will lead you to death after the first minute (due to the 9:59 ─► 10:00 internal changing on the timer), unless you use the following PAR code to lock the seconds)

00D2CFXX

Keep the timer at XX seconds (replace the XX on the code for a number from 00 to 59. Entering 59 will actually advance one minute every second, so it shouldn't be entered if: (a) the previous PAR code is set to show 9:00 (or else you'll die within one second), or (b) the previous PAR code is not used simultaneously with this code (or else you'll die within ten seconds)

00D23EXX

Level select (replace the XX on the code for a number between 01 to 11 to go from the second Act on the first Zone to the last Act on the last Zone (entering 12 will give you the ending scene); enable the code before the game starts, then disable the code after the level begins)

00D20801

Always invincible (part 1/2, trigger)

00D28D08

Always invincible (part 2/2, timer - always have both enabled)

00D41105

Always have Power Sneakers

00D27F06

Always have 6 Chaos Emeralds

00D28EFF

Fly Jump (keep button pressed to jump higher; you can't jump if you fall off a ledge or the edge however)

Game Gear

Action Replay codes

00D24009

Infinite Lives

00D2D000

Infinite Time

00D2A998

Infinite Rings

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