• All 7 Chaos Emeralds

Sonic The Hedgehog Secrets

This code only works for Sonic. First, do the Level Select cheat. In the Level Select menu, go to Sound Test and hear the sounds 04, 01, 02, 06 in this order. If done correctly, you'll hear a Chao Emerald sound effect. Now, select any stage from this menu and not only you'll be able to turn into Super Sonic with 50 rings but also you'll get Sonic's second ending after beating Death Egg Zone.

• Alternate Debug

Sonic The Hedgehog 2 Game Gear Cheats

Enter at soundtest '19, 65, 09, 17', then press A + start, then when sonic and tails pop up, press A + Start to go to the level select screen. On the sound test area, enter '01 09 09 02 01 01 02 04' and then press A + Start. This is an alternate debug to the others.

• Change Tails' name to Miles in game above lives

Action Replay codes 00D24009 Infinite Lives 00D2D000 Infinite Time 00D2A998 Infinite Rings 00D238XX Level Select (replace the XX in the code with a number from 01 to 11 (hexadecimal) 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).

At the Title screen, press Up, Up, Up, Down, Down, Down, Up.

• Debug Mode

First enter the level select code. Now,go to sound test option,and play the following tunes - 1, 9, 9, 2, 1, 1, 2, 4 - It should make a ring sound when track 4 is played to signify you've entered it correctly, now select the stage you want to go to, and press start while holding A until the stage starts,and you'll have debug activated.Here are the controls.
B-Turn Debug on/off
A-Switch object

Sonic The Hedgehog Game Gear Cheat Codes

C-Put down object selected
Pressing A while the game is paused will cause the game to reset.

• Fourteen Continues

Go to the sound test (not the one on the level select) and put in 19, 65, 09, 17, 01, 01, 02, 04 (press A after each one). There won't be a confirmation sound. Start the game by pressing Start on the first option (character select) and you should have fourteen continues.

• Get Super Sonic on Emerald Hill

First, you enter the stage select code, shown above. Then you go into the Special Stage in the stage select menu. Every time you finish the special stage press reset and go back to the special stage. Keep doing this until you get the sixth emerald. Then you don't press reset. It will just zap you with your six emeralds into emerald hill. Get the last emerald on Emerald Hill get 50 rings and jump to be super sonic. Be careful to not run out of rings or else you will change into Sonic again. The rings start dissapearing when you are Super sonic.

• Night Mode

Sonic 1 Super Sonic Cheat

Activate level select and hold C while selecting a stage to darken the level. The effect wears off when you die or when you beat the level.

• Pseudo Super Sonic

In Oil Ocean Zone, if you manage to take a hit and end up landing in one of those green-and-gold checkered cannons, you'll fall right out, but you'll be moving at twice your normal speed as well as jumping twice your normal height(with twice as much gravity). A good place for doing this would be in Oil Ocean Zone, Act 2, near the first set of pop-tops and cannons. Just jump into the semi-hidden bed of spikes on the right and land in the cannon.
Note: Moving at twice normal velocity can often get you stuck in a wall. Also, this wears off if you Super Spin Dash or Spin Dash. It also only lasts for that Act.

• Silent Mode

Go to the Options menu from the title screen, and then while there go to Sound Select and play sound number 7E. You'll notice that the game music had stopped. Now start the game and you'll be able to play the game without any music and sounds.

• Slow Motion

Weird trick, but you can play this game in slow motion. First, enter the level select code, found somewhere in the list of all other codes. Then start your game in any level. When you start, press pause. Then hold down B button and try to do anything with Sonic. The game will play in slow motion as long as you hold down the B button.

• Super Tails

Normally, when you turn into super sonic you lose tails behind you all the time. Well, after you put in the debug cheat and have started a level (preferrably Emerald Hill), turn yourself into a box and place it somewhere on the floor while you are super sonic. It should be a switch places box. Hit it and you will see tails will have a permanent invincible circle around him. He will stay like this through the whole level, he will keep up with super sonic or even out run him. A very fun glitch for two players.

• Unlimited Lives

First, enable the level select cheat and the debug mode which are available here. For this to work, you must choose Sonic and Tails as the players.
After entering the codes, choose any stage from the level select menu (preferrably stage 1) .

Sonic The Hedgehog 1 Cheats

As soon as you can move Sonic, hold down, and press C(don't let go of down on the D-pad). This will activate Sonic's spin; Tails will copy the Sonic spin also.
Press the B button and Sonic will become the Debug cursor.(Tails will be locked in the sonic spin move).
Press A until you(the debug cursor), displays an enemy sprite, like the monkey or that bee robot. Now that the debug cursor displays an enemy sprite, move the debug cursor to where Tails is, and repeatedly tap C.
This will produce enemies where Tails is, and since Tails is locked in the sonic spin move, he will destroy the enemies. As Tails destroys enemies in this position, press C more until the score for destroying an enemy increases from 100 to 8000 to a 1up. Once you have enough 1ups, press B again to revert to Sonic.

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Strategy Guide/Walkthrough/FAQLevel select

At the title screen, press Up, Down, Left, Right, Y, X to unlock all levels.

Special Zone entrance

Collect 50 rings, and finish the stage for there to be a giant ring entrance to the Special Zone.

You can almost always have the Special Zone entrance open (the giant ring next to the sign at the end of level Acts 1 and 2) by not losing your rings. If you do lose your rings, when you pass a checkpoint, intentionally die, then continue through the level without losing any rings. This works about 80% of the time.

Infinite lives

Collect the extra life at the very bottom of Green Hill Zone - Act 3. Accumulate 100 rings to obtain another extra life. Collect a third extra life located at the top of the loop-the-loop. Intentionally lose a life, and repeat the process as many times as desired.

Bonus points

Successfully complete Green Hill Zone 1-1 or 1-2 in 29 seconds or less to get a 50,000 points bonus.

Sonic The Hedgehog 2 Game Gear Cheats

Hidden 10,000 point Sonic Posts locations

Search the indicated locations to find all hidden 10,000 point bonus Sonic Posts. Note: There are no Sonic Posts in any Zone 3.

Green Hill Zone 1: When Sonic passes this zone, make sure he passes over the last tree. A 10,000 point bous is hidden there.

Green Hill Zone 2: When Sonic passes this zone, make sure he passes between the second and third palm tree. A 10,000 point bonus is hidden there.

Marble Zone 1: When you see the 'SONIC HAS PASSED ACT 1' message, you should noticed three columns. To the right of the third column, pass over the little area to get the 10,000 point bonus. In order for this to happen, you should use [Jump] as much as possible to get him to reach the point bonus.

Marble Zone 2: When you see the 'SONIC HAS PASSED ACT 2' message, pass his body over the right side of the screen to get the 10,000 point bonus. In order for this to happen, you should use [Jump] as much as possible to get him to reach the point bonus.

Spring Yard Zone 1: The 10,000 point bonus is directly above the sign.

Spring Yard Zone 2: The 10,000 point bonus is just above the blue post prior to the sign. It is closest to the left side of the screen.

Labyrinth Zone 1: The 10,000 point bonus is on the ceiling nearest the right side of the screen.

Labyrinth Zone 2: The 10,000 point bonus is on the top right hand corner of the screen.

Star Light Zone 1: The 10,000 point bonus is slightly above the top right hand corner of the screen. When you hit it, you can just barely see the bottom left hand corner of the point when you return to the ground.

Star Light Zone 2: The 10,000 point bonus can be obtained by having Sonic jump on top of the second lamp post that can be viewed from the screen. When you return to the ground, you cannot see the point.

Scrap Brain Zone 1: Under the ground, you will see a series of pipes that seems to go in this pattern: 'l n l'. The 10,000 point bonus is above the first 'l' (pipe). It may be complicated to reach.

Scrap Brain Zone 2: No points in this zone.