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Quick Info
  • Title: Sonic The Hedgehog 3 (U.S., Japan), Sonic 3 (Europe), Sonic & Knuckles, Sonic The Hedgehog 3 & Knuckles, Knuckles The Echidna In Sonic The Hedgehog 2
  • System Console: Sega Genesis / Mega Drive
  • Developer: Sonic Team & Sega Technical Institute
  • US Release Date: February 2, 1994 / October 18, 1994
  • Japan: February, 1994 / November, 1994
  • Europe: May 27, 1994 / October 18, 1994
  • Genre: 2D Platformer
  • Cart Size: 16 megabits (S3), 18 megabits (S&K), 34 megabits (S3&K)
  • Characters: Sonic The Hedgehog, Miles "Tails" Prower, Knuckles The Echidna, Doctor Eggman/Robotnik, Mecha/Silver Sonic
  • First Appearances: Knuckles The Echidna, The Floating Island, Double-Jump Moves, Insta-Shield, Double Jump, Fire Dash, Bubble Bounce, Controllable Flying Tails (on Genesis), Gliding, Climbing, Knuckle Dig, Lightning Shield, Fire Shield, Bubble Shield, Mecha/Silver Sonic, Super Mecha/Silver Sonic

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    Page is 1996-2003 Sonic HQ. Sonic & Co. are Sega.

    General Info
    Intro

    Even though called Sonic 3 this is the fourth installment in his series of Sega Genesis games. This game was released on February 2, 1994, "Hedgehog" Day. The zones in this game may only be 2 acts, but the acts were twice as big as the ones in Sonic 2. Therefore there was a lot more to discover in this game. Just realize that if you're locking on Sonic and Knuckles you'll be heading over ground not mentioned in here sometimes. Doctor Robotnik has returned but this time he's not alone....this time he's brought Knuckles The Echidna and rebuilt his greatest invention - The Death Egg!!! Enjoy!

    Released on October 14, 1994, Sonic and Knuckles was a revolutionary game because it was the first (and only game so far) containing Lock On Technology, which gave it the ability to hook up to other games. In this case, you could plug Sonic 2 or 3 into the top of the Sonic and Knuckles cartridge to play as Knuckles in those games. It boosted Sonic 3 even farther, Knuckles traveled over new ground in some zones and now there were 14 emeralds. Because of there being 14, you could now access Hyper Sonic, Hyper Knuckles, and Super Tails. You can also stick Sonic and Knuckles in the Genesis and play it on its own. The zones are about the same size as the ones in Sonic 3, and most of them have 2 acts. Some only have 1. Like Sonic 3, there is a boss in every act, except for Hidden Palace Zone.

    Story

    Whatever happened to the Death Egg after Sonic 2? After getting knocked out of the sky along with his entire Death Egg ship, Dr. Robotnik crash-landed on a mysterious Floating Island where he quickly meets Knuckles the Echidna, last of a lost civilization and guardian of the Floating Island - as well as a giant emerald better known as the mysterious "Master Emerald". The Eggman dupes Knuckles into thinking that Sonic and Tails are the bad guys, and learns that a giant Master Emerald keeps the island afloat. If he could get this Master Emerald, there would be no need for regular chaos emeralds as he would have a new source of Death Egg fuel - Forever! And while Knuckles is doing the rounds with Sonic and Tails, the Doc should have plenty of time to repair his Death Egg, as well as search for this Master Emerald.....

    After knocking Robotnik's recently re-launched Death Egg back outta the sky before it even left the atmosphere, the explosion sent Sonic and Tails back down onto Floating Island. They landed deep in the Mushroom Hills, while the Death Egg crash-landed on the top of Floating Island's largest volcano. Now there is no choice: Robotnik needs the Master Emerald to get his Death Egg back up and running, and Sonic knows it.

    While Sonic and Tails are off galavanting around the Floating Island, someone else is busy making sure they don't get thier hands on the master Emerald - his name is Knuckles and right now he doesn't realise he's being duped by Doctor Robotnik! Knuckles, a bit peeved with all the trouble by this point, decides it's time to stop taking names and start handing out punishments. Little does he know that even though he won't be battling Robotnik - he'll face a foe just as deadly! Follow Knux as he makes Sonic's life a living pain as youre introduced to the secret passages on the Isle unnaccessible by Sonic as well as later on chasing the mysterious "Eggbot" that is trying to do away with you....

    Now it's a mad three-sided race to the Master Emerald, and there can only be one victor....

    Sonic The Hedgehog 3 Comic Adaption

    Title: Sonic the Hedgehog #13 - This Island Hedgehog
    Writer: Ken Penders - Debut
    Artist: Dave Manak
    First Appearances: Knuckles, The Floating Island, The Chaos Emeralds, Robostorm, Muckery - One of the three Mobian Moons

    Summary: In an adaption of Sonic The Hedgehog 3 for Genesis, Sonic and Tails meet Knuckles The Echidna! Knuckles has been tricked by Robotnik into thinking Sonic and Tails are after the island's Chaos Emeralds. And while he's busy interoggating the heroes, Robotniks up to his old dirty tricks...

    Sonic And Knuckles Comic Adaption

    Title: Sonic And Knuckles Special - Panic In The Sky
    Writer: Mike Kanterovich And Ken Penders
    Artist: Art Mawhinney - Part 1 ; Debut (Knuckles Art)
    Artist: Dave Manak
    First Appearances: The Chaos Chamber, Mushroom Hill Zone

    Summary: In the adaption of Sonic And Knuckles for the Sega Genesis, the Mobians living on the western shore of "The Great Continent" are alarmed by the sudden approach of a floating island! Sally and the gang then realize that the island is on a beeline course for Knothole; Sonic then explains to the group that he and Tails were on the island a while back and met Knuckles The Echidna (Sonic 13) thinking something may be up! Antoine flies Sonic and Tails in the turboprop where they discover something new - Antiaircraft fire from the underside of the island! After landing on the island, battling through The Mushroom Hill Zone, and avoiding some traps, Sonic falls into one trap and thus the reunioun with Knuckles begins - With Knuckles about to send Sonic over the edge of the island! Meanwhile, it appears that Robotnik is "hijacking" the island by somehow draining the energy from the Chaos Emerald that keeps the island afloat! Already having established a presence on the island, Robotnik has installed weapons on the underside and plans to use it as a flying fortress to attack Knothole Village!!! Can Sonic, Tails, And Knuckles put aside thier differences to save The Floating Island AND Knothole?

    S3&K Comic Adaption - Sonic Quest: The Death Egg Saga #1 - 3

    Title: The Death Egg Saga - Book 1 - Scrambled
    Title: The Death Egg Saga - Book 2 - Poached
    Title: The Death Egg Saga - Book 3 - Over Easy
    Writer: Mike Gallagher
    Artist: Manny Galan And Jay Oliveras First Appearances: The Chaos Chamber, Mushroom Hill Zone

    Summary: Inside one of the huts King Acorn is in a bad state since his rescue from the Zone Of Silence (Sonic The Hedgehog 36). Tails however, suddenly notes the resemblance between the King's crystalline state and The Chaos Emeralds! Sonic tries exposing the King to the Billionth Ring he got in "Ring of Truth" (#35) but only ends up making the king worse! Still, Rotor seems to think that more of the same should help -- only this time, they need fresh rings - And thus is the beginning of the Death Egg miniseries! Robotnik has left Snively behind while he goes off to tend to his ultime weapon, Meanwhile, Sonic and Tails arrive at the ring grotto (Super Sonic VS Hyper Knuckles), that was supposedly imploded when Sonic and Knuckles did a serious head butt...Only now the aforementioned grotto is covered by a metal dome! That's when Sonic thinks that Carl Condor who lives in the mountains to the west may know something about this development. Leaving Tails to watch in horror as the mound-like dome parts in two and a giant tube drops down from the sky and inserts itself suggestively into the grotto, sucking up all the rings along with him and half the landscape! Sonic, meanwhile, finds nothing but nothing in the western landscape... and as for Carl, he shows up as a roboticized Condorbot! Carl makes short work of Sonic and begins bearing him aloft to...The Death Egg!!! Robotnik then heads for the control room, and the camera pulls away to reveal the Death Egg in all its superhuge glory...Robotnik meanwhile has run into a small snag: It seems that in order to properly power the Death Egg, he needs one thing - A Chaos Emerald, and his first stop is none other than The Floating Island!!! Tails, meanwhile has climbed out of the debris and into a disabled Swatbot that Robotnik punched out last issue as he makes his way to Robotnik's control room...As for Sonic, after narrowly escaping Condorbot, using his figure-eight move we cut to Knothole as Sally learns from Nicole that the King's condition is unknown and worsening. Rotor informs Sally that Sonic and Tails haven't reported back, and has Sally let the stress get to her. Knuckles and the Chaotix are getting suspicious as the Death Egg makes a beeline for the island - and even worse is when Robotnik then launches two large "Burrobots" with one mission - Find The Chaos Emeralds. And last but not least, Sonic is readying to trash a Swatbot...the same swatbot with Tails inside....And by the end we have Robotnik steadily trying to push The Floating Island into the sea attempting to overcome the power of the Chaos Emerald!

     

    Zone Menu
    The Floating Island - Main Zones
    The Floating Island - Special & Bonus Zones
    The Floating Island - Time Attack Zones
    Lock-On Technology


    Knuckles the Echidna in Sonic 2


    Secret Special Zone Game

    Knux isn't available in these two games - BUT GET THIS remember the special stages in Sonic 3? Well it seems that Sonic Team added a little secret - when certain codes are programmed into Sonic and Knux when attached to these two games you get a SLEW of special stages - in count there are possibly over 32,000 bonus rounds available for play seeing as how they take up little space to program!!!! To play the bonus rounds at any time, insert any game into your Sonic & Knuckles cartridge along with said cartridge - Sonic 1 or Sonic Spinball. (***NOTE*** - Only one bonus game is available with Sonic Spinball but its a doozy!!!!!!! ) When the "No Way" message appears, hold A + B + C and press Start. If you do this with the original Sonic game you can play the levels in order and will be given a password to save your progress. And heres one thing - they get harder and harder and harder the further you go - I specifically remember one where you have to do nearly 95% of the board backwards!!!!

    Note: In case you're wondering, I've left out the passwords deliberately. Like I said - there are possibly over 32,000 playable bonus levels encoded in Sonic & Knuckles. I can't possibly list them all on the page, nor is there much point to doing so since the levels are nearly identical even though they get harder and harder and harder. Thank you.

    You've met Knux in Sonic 3 but what if he was in Sonic 2? Could he handle being in Sonic's shoes on what is considered one of Sonic's greatest games? Thats the premise of Sonic 2 and Knuckles as Knux takes on the levels of Sonic The Hedgehog 2 !!!

    Basically there isnt much of anything different here except your piloting Knux through the levels instead of Sonic - however that doesnt mean you wont have problems. Knux can't jump near as high as Sonic so this makes it quite harder than before! MOST notably when you get to the Death Egg Zone. So for reasonably obvious purposes you can find the walkthrough of Death Egg located here and on the Sonic and Knuckles page.

    Death Egg Zone - Knuckles Only

    This is the ONLY way to beat Robotnik in his super suit using Knuckles - His jumping ability is not good AND time is NOT on your side so this is MUCH harder. Go to the 4th or 5th window from the left when the cross-hairs are on you. When he's ready to slam down, spindash to the right. He will land and try to shoot his arms at you, but they won't reach. He will fly back up, and do it again. Go back to the same place. When the cross-hairs are locked on, walk away to the right side. He will land and the top of the suit will come down. Hit him in the chest when it comes all the way down. Remember only attack Robotnik every other time he lands. After you've beaten him, sit back and watch the Death Egg explode and then the ending of Sonic 2.

     

    Level Select / Debug (Different For Each Version)
    Level Select / Sound Test (Sonic 3 & Knuckles, or Sonic & Knuckles Alone)

    Start Mushroom Hill or Angel Island. For Angel Island grab a vine - For Mushroom Hill grab a Pull-Up machine. (An easy one to find is in Sonic and Tails' version of Act 1. It's just after the box with the power sneakers and the Madmole.) Hang from the vine/machine and press left left left, right right right, up up up. You should hear a ring sound. Pause the game and press A to reset to the title screen.

    Construction / Debug Mode (Sonic 3 & Knuckles)
    To activate Debug, siply do the Level Select code in both Angel Island and Mushroom Hill.
    Debug is not quite the same as it was in the previous Sonic games. You still press B to use Debug, A to place items, and C to cycle between items. However, when Debug isn't being use, the game timer is not messed up, and pressing A will cause gravity to reverse like it does in Death Egg Zone Act 2.

    Level Select / Sound Test (Sonic 3)
    When the Sega logo comes up, just after the "Sega" theme is sung and the screen begins to turn black, quickly press: Up, Up, Down, Down, Up, Up, Up, Up to the beat of the drums. You should hear a ring chime if you did it correctly. A new Sound Test option should appear at the title screen.
    The Flying Battery, Mushroom Hill, and Sandopolis Zones are visible on the Level Select screen, but can't be played without Lock-On. Those levels were originally intended for Sonic 3, but were pulled in order to release the game on time.

    Construction / Debug Mode (Sonic 3)
    Enter the Level Select code, then press A + Start to choose your starting level. Once the action starts, press B to change into an item, A to cycle between the available items, and C to place an item.
    Alternatively, turn on the Genesis and press Up, Up, Down, Down, Up, Up Up before Sonic gets fully on screen.

    Sonic 2 -> Sonic 3 Cheat (Sonic 3 - duh)
    If you can't do the super-tough Level Select code for Sonic 3, there is an alternative.
    (WARNING: I'm not sure if this code is healthy for your Genesis or not, but it is not representative of recommended use, so I strongly recommend that you do not use it. Keep trying the regular Level Select code, or just do the much easier Sonic 3 & Knuckles Level Select instead.)
    Insert Sonic 2 and enter the Sonic 2 Level Select (play sounds 19, 65, 09, and 17). Return to the title screen, hold A and press Start. To transfer this to Sonic 3, hold A and carefully remove the cartridge without turning off the Genesis. Insert Sonic 3 and press Reset. Finally, release A and press Down twice at the main menu.

     

    Other Codes (Same For S3&K, S3, and S&K)
    Easy Emeralds / Superness
    To gain all the chaos emeralds, enter the Level Select code, then highlight "Special Stage" and press C + Start. After receiving the emerald, press A + Start and repeat the process until you have them all.
    Alternatively, enter the Sound Test code and play sounds 2, 4, 5, 6 in order. If you did it correctly, the Emerald sound will play.

    Nightime Play
    Enter the Level Select code, then press C + Start to choose your starting level.

    The Missing Special Stage
    Access a special stage not found with Sonic and Knuckles!!!!!! For an all new bonus stage, enable Level Select, then play tune 1F. Finally, highlight stage 2 and hold A while pressing Start.

    Bonus Boards Unlimited
    Enter the Level Select code, then highlight the "2P Vs" option and press START. You will enter a series of bonus stages that last until you reset the system or press A+START.

    Special Controls - Escape, Slow Motion, Frame Advance
    After the Level Select / Sound Test Code has been entered, pause in any level. Press A to escape to the game's title screen, B to advance several frames ahead in time (repeatedly for slow-motion), or C to advance one frame ahead in time.

    Animation Gallery
    After the Construction / Debug Mode Code has been entered, enter a level, and press B while holding C. Your character will start cycling very quickly through every animation he has. Use the Pause-C "frame skip" to see every frame of every animation. There are several that were not used in the final game, including Sonic whistling and Sonic falling asleep.

     

    Cheats
    Unlimited Rings and Unlimited Super/Hyper
    Enter Debug Mode then select a stage. Choose the monitor as your item. Place one (Ity will have an "S" on it) and collect it to get 50 rings and become Super. You can do this as many times as you want, meaning that you have unlimited rings and can remain Super as long as you want.

    Extra Lives At The Launch Base
    To do this trick you must get to the first level of the Launch Base Zone. Set off the first alarm, stop Sonic in the middle of it, and do a Spin-Dash attack. The flybots will continue to attack, and eventually their value will increase to 10,000 points! Every five flybots will gain you a life and, if you're patient enough, you can earn up to 99 lives!

    Extra Rings For Tails
    Enter Debug Mode then select a stage. Next press B, A (you must have Sonic and Tails on-screen.) When your cursor changes into a ring, paste it on Tails.

    Super Shortcut In The Balloon Park
    Go to Competition and select Balloon Park. Instead of going forward, fall down backward to land on a yellow balloon. Hold LEFT, You should walk on the ceiling. You will disappear and keep going until you win!

    Turbo Tails !!!!! (Sonic 3 Only)
    Enable Level Select, then press Down to make sure you have the sound test (don't select it yet). Start a one-player game and choose Tails in the Data Select screen. When the timer appears, press RESET.

    Enter the Sound Test menu and choose any zone. Hold A and press Start. You should be Tails and be in debug mode. From here press B, then press A until you see a item monitor. Press C to select it, then press B to return to Tails.

    To enable Turbo Tails, jump on the box. Tails will look weird and can not be hurt or lose any rings. He can still get squashed and drowned, though, so be careful in the Ice Cap zone. You will have do this at the beginning of each zone. Robotnik can hurt him at the very end of Launch Base zone-act 2.



     

    Tricks
    Changing Identities
    Use the debug mode cheat. Start any level that has a special stage ring. Next turn into your favorite object. As an object go to the center of a ring. Now hit B twice quickly. When you get out of the special stage you will look like that object for the rest of the level.

    Battle Music In the Hydrocity Zone
    Just before Before you fight Robotnik in the Hydrocity Zone, act 2, the boss music will come. Keep Sonic's head under the shallow water until he is about to drown, then pop out of the water. You will hear the boss music from Sonic and Knuckles.

    Mecha Sonic and Mecha Tails
    Use the Debug Mode code in Launch Base act 2. Beat the game. When Sonic or Tails jumps towards you, activate Debug Mode and get out of it immediately. You will be able to use Sonic or Tails in the background for a short time, but they will look like robots.

    Black and Blue Knuckles
    (Submitted by Rob Trappen)
    In debug get to Carnival Night act 2. Get to where knuckles hits the lever and activates the anti-gravity tubes. Get in and out of debug quickly. As soon as Knux hits the lever and starts to run, go after him and outrun him. Go back to where he was, he should have a odd blue body and a black face. If he isn't there go back to the tube and he'll reappear. Repeat the process.

    Random Start
    Enter the sound test menu choose a level. Look for a star post, touch it and hold A and press START. Then choose another level. If done correctly the title of the zone will change. Beware you might start out in a wall so use debug mode to fly out.

    Super Super Zone Shortcut
    (Submitted by Rob Trappen)
    In debug go to any zone except sandopolis. Change into a sprite and go as far back as possible. Get out of debug. You should start flying super fast (Get back into debug because who knows where you'll end up); Just enjoy the ride.

    Fake Act
    (Submitted by Rob Trappen)
    (This does not work in Ice Cap 1 but it will send you to act 2 and won't work in Mushroom Hill, Flying Battery, Sandopolis, Lava Reef, Hidden Palace, Sky Sanctuary, or Angel Island)
    Go to the bottom of the screen in debug. You should see a ceiling the background, and some black (in some zones you may have to travel under near the boss area). Go right to the end of the screen and press up until you enter a small replica of the act (to get out use debug and try to move left at all times.)

     

    Game Genie
    Game Genie
    (Sonic 3 Only)

    AA6T-AAXC Level select
    AWHA-CA92 Don't lose rings
    SCGT-DJYL Rings worth 2
    SCGT-DNYL Rings worth 3
    SCGT-DTYL Rings worth 4
    SCGT-DYYL Rings worth 5
    SCGT-D2YL Rings worth 6
    SCGT-D6YL Rings worth 7
    SCGT-DAYL Rings worth 8
    KRGT-CAE0 75 Rings needed for a free guy
    GLGT-CAE0 50 Rings needed for a free guy
    D4GT-CAE0 30 Rings needed for a free guy
    CWGT-CAE0 20 Rings needed for a free guy
    BLGT-CAE0 10 Rings needed for a free guy
    HCGT-DJZY Get 2 free guys for 100 rings instead of 1
    HCGT-DNZY Get 3 free guys for 100 rings
    HCGT-DTZY Get 4 free guys for 100 rings
    HCGT-DYZY Get 5 free guys for 100 rings
    HCGT-D2ZY Get 6 free guys for 100 rings
    HCGT-D6ZY Get 7 free guys for 100 rings
    HCGT-DAZY Get 8 free guys for 100 rings
    AC5A-CAHN Super ring powerup worth 0
    A05A-CAHN Super ring powerup worth 5 instead of 10
    B85A-CAHN Super ring powerup worth 15
    CW5A-CAHN Super ring powerup worth 20
    DG5A-CAHN Super ring powerup worth 25
    D45A-CAHN Super ring powerup worth 30
    GL5A-CAHN Super ring powerup worth 50
    NW5A-CAHN Super ring powerup worth 100 (1-Up every time
    AJZA-CA8N Super Sonic doesn't lose rings
    AJ3A-CA7A Infinite lives
    AG4T-AAH4 Start with 1 life
    AL4T-AAH4 Start with 2 lives
    A04T-AAH4 Start with 5 lives
    BL4T-AAH4 Start with 10 lives
    DG4T-AAH4 Start with 25 lives
    GL4T-AAH4 Start with 50 lives
    NR4T-AAH4 Start with 99 lives
    ACAT-CAB6 Shield can be activated multiple times
    AJRT-CA8R Invincibility power-ups last forever
    986A-CAB6 Invincibility lasts almost twice as long
    KR6A-CAB6 Invincibility lasts half as long
    E06A-CAB6 Invincibility lasts 1/4 as long
    SCFT-BJT4 Only need 6 chaos emeralds
    SCFT-BNT4 Only need 4 chaos emeralds
    SCFT-BTT4 Only need 3 chaos emeralds
    SCFT-B2T4 Only need 2 chaos emeralds
    SCGA-BL0N + A4GA-A28T Blue spheres worth 2
    SCGA-BR0N + A4GA-A28T Blue spheres worth 3
    SCGA-BW0N + A4GA-A28T Blue spheres worth 4
    SCGA-B00N + A4GA-A28T Blue spheres worth 5
    SCGA-B40N + A4GA-A28T Blue spheres worth 6
    SCGA-B80N + A4GA-A28T Blue spheres worth 7
    SCGA-BC0N + A4GA-A28T Blue spheres worth 8
    ACGA-AA8T 1 Blue sphere needed for chaos emerald
    TAYA-CRB6 Bonus jump
    AAYA-CWB6 Super jump
    AAYA-C0B6 Mega-jump
    ATST-CA38 Never drown (must switch off for some spring-pad jumps)