From Sonic Retro

(Redirected from Knuckles' Chaotix)


  • PAL
Chaotix title.png
Chaotix 32X Comparison PALTitle.png
System(s): Sega 32X
Publisher: Sega
Sound driver: SMPS Z80 (modified)
Genre: Action[2][3]
Number of players: 1-2
Release Date RRP Code Rating
Sega 32X
1995-04-21[3] ¥7,800 GM-5003
Sega Rating: All Ages
Sega 32X
1995-05[4] $69.99[5] 84503
ESRB: Kids to Adults
Sega 32X
1995-06 €? 84503-50
Sega 32X
1995-06[6][7] £49.99[7] 84503-50
Sega 32X
1995-06 DM 149.00[8] 84503-50
Sega 32X
1995 R$? 152090
Tectoy: Todas as Idades
Sega 32X
199x $? FCHA05SXC
Sega 32X
199x  ? XJ84503
For the group of characters, see Chaotix (characters) and Team Chaotix.

Chaotix (カオティクス), known as Knuckles' Chaotix on western packaging and Chaotix: Featuring Knuckles the Echidna (カオティクス ~FEATURING ナックルズ ザ エキドゥナ~) on Japanese packaging, is a Sonic the Hedgehog-related game released for the Sega 32X in early 1995. It gives the newly introduced Knuckles the Echidna the starring role, alongside a new group of characters informally known as the "Chaotix", collectively stopping Dr. Eggman and Metal Sonic from exploiting the powers of the Special Rings.

Chaotix had a troubled development history, beginning life as Sonic Crackers for the Sega Mega Drive before being housed on the 32X, an equally troubled piece of video game hardware. Neither Sonic the Hedgehog nor Miles "Tails" Prower appear in the game (bar an ending cameo), with their places filled by Mighty the Armadillo, Vector the Crocodile, Charmy Bee and Espio the Chameleon. Other characters include Bomb the Mechanic and Heavy the Mechanic which act as booby prize characters. There is strong evidence to suggest that both Sonic and Tails were playable at some point, however they were removed from the game for currently unknown reasons.

Chaotix is the only 32X outing for the Sonic universe (although Sonic X-treme was once tipped for a 32X release) and is considered to be a black sheep in the Sonic family. Many of its concepts have not been seen in a Sonic game since, and the game was only officially rereleased once, through GameTap briefly in 2007.


According the game's Japanese manual, a mysterious island rose from the sea shortly after the events of Sonic & Knuckles. Doctor Eggman discovered the island, and found a mysterious small ring inscribed with descriptions of a lost civilization. Additionally, Eggman discovered a Special Ring identical to the ones on the Floating Island. These Special Rings create a mysterious dimensional space filled with the Master Emerald Pillar's energy, which had crystallized and formed six Chaos Rings. Determined to unlock the secrets of the Special Rings and the power to summon the Master Emerald, Eggman built his base, the Newtrogic High Zone, on the island. Before long, Eggman had succeeded in crystallizing energy into his own artificial Dark Rings, which he used to power his new robot army. Mighty the Armadillo, Espio the Chameleon, Vector the Crocodile, and Charmy Bee also arrived at the island, and ended up being captured by Eggman and Metal Sonic, and placed in Eggman's Combi Catcher machine. Knuckles, curious about the strange island, goes there as well, and manages to rescue Espio. The two then go on to thwart Eggman's plans.

The story provided by the Western manual, however, is completely different. In it, Knuckles guards Carnival Island, a large hi-tech amusement park. Dr. Robotnik goes there to steal the power emerald that powers the whole island so he can use it to power his evil devices. Dr. Robotnik traps Vector the Crocodile, Charmy Bee, and Mighty the Armadillo, who were visiting the island, in the Combi Confiner (a machine Robotnik built that freezes them in time) and is about to do the same to Espio the Chameleon until Knuckles chases him away. Knuckles then discovers that he can rescue one friend at a time using ring power, which holds the two partners together like a rubber band. All the characters (plus Heavy the Robot and Bomb) then work together to save Carnival Island from Robotnik.


Mighty and Knuckles attempting to make a stand against Dr. Robotnik.

The primary objective of the game remains unchanged from previous Sonic titles; the player must finish each level (called "attractions" in this game) in under ten minutes and defeat Dr. Eggman's Badniks along the way. Rings still constitute the player's life energy and can be collected to enter special stages. Extra lives are unobtainable in the game (due to the fact that you don't really have "Lives" to begin with) — once the player is damaged when he has no rings and his partner is absent (if you have no rings, getting hit will temporarily cause you to lose your partner, but he will return eventually) or if you use 'recall' to reduce your ring counter to negative 99 rings or lower, you will automatically be taken back to the world lobby (or back to the title screen, if you are in Isolated Island) and be given a chance to leave/save or to choose a different partner and/or try to choose another attraction to play.

The main game is divided into five attractions, each one consisting of five different levels. The stages are set in different times of day (morning, day, evening, night), which is determined by how long you stay in the previous stage (if there was no change, then next time there will definitely be a change). The time of day effects enemy and object placements, whether some doors will be open and whether some lifts work, and can adjust the boss difficulty. At the end of level 5, the player confronts Dr. Eggman in one of his contraptions.

Chaos Emeralds are completely absent from this game, and in their place are Chaos Rings which function identically to the Emeralds. Collecting the rings is similar to that of Sonic 1. Pick up at least 50 rings and make it the the giant ring at the end of the act (except if you're playing the fifth act.) In the Special Stage, you must run through a long 3D obstacle course and collect a certain number of Blue Spheres. Completing a stage will award you a Chaos Ring, and collecting all six, unfortunately, does nothing but change the background in the credits.

The most fundamental change in Chaotix is the special ring force bond between characters. In earlier Sonic games, two-player mode would consist either of a traditional split screen race or a joint single player effort with Tails as a secondary character. In the latter case, this meant that Tails could move off screen and get lost for a few seconds until he returned to Sonic.

In Chaotix, however, both players are at all times connected on one single screen while neither player acts as the dominant force to move the game forward. Besides the staple of traditional Sonic moves, like the Spin Jump, Roll and Spin Dash, and the new character-exclusive abilities this means some new tricks can be executed with the elastic force of the ring bond. For example, player 1 can hold his position while player 2 (or the AI, if in single-player mode) runs forward and stretches the bond to gain maximum speed. In mid-air the bond can be used to generate an upward momentum. Additionally, players can toss each other toward platforms or use the 'recall' button to reunite (at a cost of ten rings, even going into a negative count if necessary).

Consequently, damage is a bit more complicated. If an AI character is hit, only one ring is lost; if a human player's character is hit, behavior depends on whether or not he has picked up a Combine Ring (blue ring monitor). If the player has a Combine Ring, the lost rings will come out as one big ring, giving him ten seconds to get that ring and reclaim all your rings before it breaks apart. If he doesn't have it, then he loses all his rings.

Espio and Bomb taking a jog through Techno Tower.

Each character has their own unique abilities, speeds, weights, stopping speed, jump height and throwing strength. Knuckles the Echidna still has his gliding and climbing abilities from Sonic & Knuckles, Espio the Chameleon can walk on walls and ceilings, Mighty the Armadillo can wall jump, Vector the Crocodile can dash through the air and climb walls, and last but certainly not least, Charmy Bee is not only the fastest, but also has an overpowered flying ability. Only fully playable through the Level Select, or as a partner, the fake prize characters Bomb the Mechanic and Heavy the Mechanic only serve to slow down the player. Bomb violently explodes whenever he gets hit, which can actually cause damage to the player, and Heavy is by far the slowest, which can slow levels like Speed Slider down to a crawl.

Due to the game's length, Chaotix was given a battery-backup save feature which allows the player to save their progress either manually (by going past the exit sign) or automatically (your progress is immediately saved after you beat an act/special stage).

On a side note, all of the Badniks and almost all of the bosses in the game use gray, power-sapped Rings to function rather than animals. However, the Rings cannot be collected like regular Rings, as they dissolve not long after falling out of their Badnik/boss machine. This concept was later used for Tails Adventures' and Sonic Advance 3's robots, but the Rings appear to be fine when released and can be collected like any other Ring.


Chaotix saw one of the most expansive item repertoires in Sonic history, as well as the most one-game items in the series' history.

  • Super Ring - Gives 10 Rings instantly.
  • Combine Ring - Fuses the player's Rings together as they are collected until he is hit. Upon taking damage, the player will release one Ring equivalent to all Rings lost. If the Ring is not collected in a short time, it explodes into individual Rings.
  • Shield - Supplies the player with a barrier, protecting them from one hit without Ring loss.
  • Invincible - Makes the player and partner invincible for 20 seconds.
  • Power Sneakers - Increases the player and partner's speed for 20 seconds.
  • Swap - Transforms the player into the partner, and the partner into the player, for 20 seconds.
  • Change - Transforms the partner into the player shown on the monitor for 20 seconds. The item is best used in a two-player game, and the player who does NOT want to transform must open the monitor.
  • Grow - Doubles the player in size, thus increasing his weight eightfold and jump height fourfold, for 20 seconds.
  • Shrink - Halves the player in size, thus decreasing his weight eightfold and jump height fourfold, for 20 seconds.
  • Combi Catcher - Bonus Stage exclusive item. Makes the claw game in Newtronic High Zone move on the player's command, disables the timer and allows the player to pick a character without it changing.
  • Stage Select - Bonus Stage exclusive item. Makes the level randomizer in Newtronic High Zone move MUCH slower, and picks the level instantly when Spindashed into.


Ring bonus at end of level: 100 points for each Ring held

Time bonus at end of level:

  • Game clock reads 0'29'99 or less = 50,000
  • Game clock reads 0'30'00 to 0'44'99 = 10,000
  • Game clock reads 0'45'00 to 0'59'99 = 5,000
  • Game clock reads 1'00'00 to 1'29'99 = 4,000
  • Game clock reads 1'30'00 to 1'59'99 = 3,000
  • Game clock reads 2'00'00 to 2'59'99 = 2,000
  • Game clock reads 3'00'00 to 3'59'99 = 1,000
  • Game clock reads 4'00'00 to 4'59'99 = 500
  • Game clock reads 5'00'00 or more = 0

Secret bonus at the end of a level: 10,000 points for taking a hidden alternate route, winning a Bonus Stage exclusive item or by entering the Special Stage

Enemies - 100 points per enemy destroyed

Bosses - 10,000 points per boss fight destroyed



Sonic Retro emblem.svg Main article: Chaotix/Development


Due to the unpopularity of the 32X, Chaotix sold far fewer units in comparison to many of the Mega Drive Sonic games. The 32X hardware has also put it at a disadvantage when it comes to official emulation - it has yet to be brought to any newer systems and so has become one of the more obscure Sonic games.

With the exception of comics and nods to this game's existence, Heavy and Bomb have not been seen in any Sonic game since. Espio was included in Sonic the Fighters, but Vector and Charmy were not seen in a video game until 2004's Sonic Heroes, where alongside Espio they formed Team Chaotix (and all three have had cameos since). The concept of a player controlling two characters was recycled for Sonic Advance 3, although the physics behind the ring connection has not been repeated.

In Sonic Generations, a remix of Door Into Summer, the theme of Isolated Island, plays in the Collection Room in the HD versions, while a different remix can be unlocked in the 3DS version by completing StreetPass missions. In addition, when the Ring Time skill is activated in the HD versions, a remix of Tube Panic, the Special Stage theme plays.

Sonic Mania makes a number of references to Chaotix and even imports a few elements. The Combine Ring power-up was brought back as the "Hyper Ring" with a slightly different function, the Carry Badnik appears in the second Act of Press Garden Zone, and a number of sound effects have been imported, primarily in Studiopolis Zone. The secret ending achieved by playing as Knuckles with "& Knuckles" turned on is accompanied by a remix of This Horizon. Sonic Mania Plus finally brings back Mighty as a playable character, as he has not been seen since Chaotix (minus a brief cameo on a poster in Sonic Generations).


Sonic Retro emblem.svg Main article: Chaotix/Manuals

Production credits

Sonic Retro emblem.svg Main article: sega:Chaotix/Production credits


Sonic Gems Collection museum

Physical scans

Segaretro-round.svg Reception »
32X, JP
Chaotix 32x jp back cover.jpgChaotix-box-jap.jpg
32X, US
32X, EU
Chaotix 32X EU Box Back.jpgChaotix 32X EU Box Spine.jpgChaotix 32X EU Box Front.jpg
32X, PT

32X, AU

32X, BR
Chaotix 32x br cover.jpg

Technical information

Sonic Retro emblem.svg Main article: Chaotix/Technical information

ROM dump status

System Hash Size Build Date Source Comments
Sega 32X
CRC32 d0b0b842
MD5 47b1095e68b053125cd2cd5b1ac4eb50
SHA-1 0c2fff7bc79ed26507c08ac47464c3af19f7ced7
3MB 1995-02 Cartridge (US/JP)
Sega 32X
CRC32 41d63572
MD5 4ce9e6b6e8883d8a678d90aabce022d0
SHA-1 5c1a2e327a656217604d4bae7e141764a7e59922
3MB 1995-02 Cartridge (EU)
Sega Mega Drive
CRC32 7fada88d
MD5 f9d87064d48d99ebbd425e8334de4beb
SHA-1 05f460a6ebbc1f86eb40b5f762083a59fb29f3e2
1MB 1994-04-01 Cartridge Sonic Crackers Download.svg (368 kB) (info) Page
Sega 32X
CRC32 d62ae235
MD5 ed059ef80f0292989c0cc86a0224f09d
SHA-1 150dace1482ebf38a0f6242be6d8b7ea19f8a737
3MB 1994-12-07 CD-R disc[9] "1207" Download.svg (1.34 MB) (info) Page
Sega 32X
CRC32 4307d738
MD5 a161c79dd955d971ee3fcb2e01777257
SHA-1 c62a8be339ffd9dd182a3f8e60b6e27225cfc5f2
4MB 1994-12-27 CD-R disc[10] "1227" Download.svg (1.54 MB) (info) Page
Sega 32X
CRC32 36a294e0
MD5 88c27c63dd58ba339b4db3a1c8791521
SHA-1 883c7748c3c352b44238d2bdc9152ac9651e99fb
4MB 1994-12-29 CD-R disc[11] "1229" Download.svg (1.84 MB) (info) Page
Sega 32X
CRC32 5523ea78
MD5 d8ad7470835e0edc83b770b59584f625
SHA-1 882ce770f32f4af61ac422accecc8a84e1c52cd3
4MB 1995-01-12 CD-R disc[12] "0111" Download.svg (1.54 MB) (info) Page
Sega 32X
CRC32 468ad032
MD5 dde8f92c0fb80488f53ebbce98bd203c
SHA-1 2b1a5f19113fa4015437ede5a195c5dfb377e5be
4MB 1995-01-19 CD-R disc[13] "0119" Download.svg (1.59 MB) (info) Page
Sega 32X
CRC32 7b32e440
MD5 e6c65023505129b294c48d37a2d7899d
SHA-1 4e4af26f944cf3b5d99f60f37b20dc67207a4fbe
3MB 1995-02-02 CD-R disc[14] "0202" Download.svg (1.65 MB) (info) Page
Sega 32X
CRC32 b099e5f6
MD5 b37e562d5c0a26122abf66ac94fef886
SHA-1 d965d12c8cce09683d80c08d06c74b7c6e7b8dab
3MB 1995-02-08 CD-R disc[15] "0208" Download.svg (1.63 MB) (info) Page
Sega 32X
CRC32 e95d7f57
MD5 241082f8b6399e658e3516281a2a725e
SHA-1 01c9f4614f282a05b3e86701b4ca18a1a0e1889c
3MB 1995-02-09 CD-R disc[16] "0209" Download.svg (1.63 MB) (info) Page
Sega 32X
CRC32 7b716175
MD5 b925cb18160ced5285981a3edd5c4213
SHA-1 4c13842abeda86ce6577da67ba5fc24fbfbdc0de
3MB 1995-02-10 CD-R disc[17] "0210" Download.svg (1.63 MB) (info) Page
Sega 32X
CRC32 14f43e14
MD5 9d986b6c96704de70e43988825df463a
SHA-1 0cbbcc96f23917feb844469163bc8ab14da94816
3MB 1995-02-13 CD-R disc[18] "0213" Download.svg (1.63 MB) (info) Page
Sega 32X
CRC32 aff06bff
MD5 bdd716e7e0ce4a24ad73179fba8d65dd
SHA-1 88b122398c1b25f432ae845b799f1308f51aa055
3MB 1995-02-13 CD-R disc[19] "213B" Download.svg (1.63 MB) (info) Page
Sega 32X
CRC32 ba0a1108
MD5 5e1012438fdeda44b64589fd33daad5f
SHA-1 af3bfd9540098581aef08664d625725ffcc90be2
3MB 1995-02-14 CD-R disc[20] "0214" Download.svg (1.63 MB) (info) Page
Sega 32X
CRC32 d0b0b842
MD5 47b1095e68b053125cd2cd5b1ac4eb50
SHA-1 0c2fff7bc79ed26507c08ac47464c3af19f7ced7
3MB 1995-02-16 CD-R disc[21] "0216" Download.svg (1.63 MB) (info) Page

External links


Chaotix title.png

Main page

Promotional material
Magazine articles
Video coverage

Hidden content
Region coding
Technical information

Sonic the Hedgehog games for the following systems
Sega Mega Drive

Sega Mega-CD
Sega 32X
 1991  Sonic the Hedgehog | Sonic Eraser     1992  Sonic the Hedgehog 2     1993  Sonic the Hedgehog CD | Dr. Robotnik's Mean Bean Machine | Sonic Spinball     1994  Sonic the Hedgehog 3 | Sonic & Knuckles     1995  Chaotix | Sonic Classics     1996  Sonic 3D: Flickies' Island