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Mighty the Armadillo is a supporting character in the Sonic the Hedgehog franchise. His character designer was Manabu Kusunoki.

Mighty is an explorer and a long time acquaintance of Sonic the Hedgehog, and he first appeared in SegaSonic the Hedgehog, where he was voiced by Yūsuke Numata.

Concept and creation

Before Sonic the Hedgehog was introduced to the gaming industry, one of the character concepts, an armadillo, was considered as one of mascot choices for Sega to be introduced in new video game series to success in console market business against Nintendo. On the interview of “SEGA Mega Drive/Genesis: The Collected Works” book, Yuji Naka stated that an armadillo and a hedgehog were two of the choices for experimenting with further ideas for a fast character. The armadillo was quickly amended to the hedgehog due Naoto Ōshima's hedgehog illustration being very stylish and best to represent speedy qualities. From this standpoint, Naoto Ōshima designed Sonic the Hedgehog to be new mascot for Sega.

Several years later, Sega reused the armadillo character and created Mighty the Armadillo for the arcade game SegaSonic the Hedgehog and later in Sega 32X title Knuckles' Chaotix.


Mighty is based on a real-life armadillo. His fur body is black with red thick armor, which rounds from the forehead above to the lower back up. Mighty's ears are side facing the funnel-shaped like real-life's armadillo. Mighty's skin color along with ears, mouth, arms and belly is yellowish-tan. In some areas, Mighty bears resembles to the Sonic the Hedgehog, main character of the series. Both have interconnected, cartoonish, circular eyes with black pupils, and both have white gloves with sock-like cuffs and red shoes with white socks.

In fact at SegaSonic the Hedgehog arcade game, Mighty's shoes were almost identical to Sonic's ones, as sneakers were red with white socks and white straps without golden buckles. Later his shoes were slightly altered in Knuckles' Chaotix, as a pair of shoes are red, having white socks and white shoe soles. Instead of straps, Mighty's shoes have white overlay lines.


SegaSonic the Hedgehog

Mighty's first appearance is in the arcade game SegaSonic the Hedgehog, where he was captured by Dr. Robotnik along with Sonic the Hedgehog and Ray the Flying Squirrel. They were taken to Eggman Island and imprisoned, but they made their way through the island's defenses. After the trio got to the control room of Eggman's Tower, Robotnik activates self-destruction of island. Despite that, the whole cast manages to get out of Eggman Island, which got destroyed in the process.

In this game, Mighty played exactly like Sonic and Ray; he was fairly fast and could roll into a ball to perform the Spin Jump. In the game, he was voiced by Yūsuke Numata.

Sonic Mania

Knuckles' Chaotix

Mighty makes his next appearance in Knuckles' Chaotix for the Sega 32X. In the Japanese manual, he just happened to stumble across the island which the adventure is set on during his explorations. In the English manual, he is a friend of Knuckles the Echidna, and happens to visit "Carnival Island" when Robotnik attacks.

In both manuals he is captured by Robotnik, and imprisoned in his Combi Catcher machine. When Knuckles arrives, he can pick Mighty out of the machine and use him as a partner. Mighty plays very much like Sonic from the previous Sonic games, using his Spin Attack and Spin Dash. He also has the ability to kick off walls in order to gain height.

Other game appearances

Gale Racer

Mighty made a cameo appearance as swinging ornament chain on the windshield in Gale Racer, the Sega Saturn port of the arcade game Rad Mobile released in 1994.

Sonic Generations

Mighty makes a small cameo appearance in console/PC versions of Sonic Generations, where both Mighty and Ray can be seen on missing posters dotted throughout the City Escape. The poster mentions that they've been missing since 1993, referencing the arcade game SegaSonic the Hedgehog. The poster misspells Mighty's species' name as "Armaddilo."



Pre-Super Genesis Wave

Post-Super Genesis Wave



In the video games, Mighty is described as gentle and caring pacifist, only using his strength and fighting abilities either when there is trouble afoot or if he has no other option. He loves to travel, and his dream is to journey to all places of the world. According to the Japanese manual of Knuckles' Chaotix, Mighty enjoys forest bathing, likes peace and nature, and detests violence.

Powers and abilities

Like most characters in the series, Mighty has some super speed. Mighty can use the Spin Attack where he curls tightly into a concussive ball while in locomotion to damage, mow down, or burrow through obstacles and foes. He also has the Spin Jump, during which Mighty jumps into the air as a ball. Mighty has the Spin Dash (originally named the "Super Spin Dash") as well, which allows him to charge up a Spin Attack from a standing position, and then shoot off towards enemies.

Mighty's unique move in Knuckles' Chaotix was a Wall Kick that let him kick off a wall, gaining some height and letting him traverse up shafts as long as the walls are close enough to each other. In North American manual of Knuckles' Chaotix, Mighty is described having super strength. Despite his namesake, this has been never demonstrated in any of his games appearances until Sonic Mania Plus.




            Sonic the Hedgehog logo.png Heroes

Main Universe
Team Sonic
Knuckles the Echidna | Miles "Tails" Prower | Sonic the Hedgehog
Team Rose
Amy Rose | Big the Cat | Cheese | Chocola Chao | Cream the Rabbit | Emerl | Froggy | G-merl | Omochao | Vanilla the Rabbit
Gerald Robotnik | G.U.N. Commander | Maria Robotnik
Team Dark
E-123 Omega | Rouge the Bat | Shadow the Hedgehog
Chaotix Detective Agency
Charmy Bee | Espio the Chameleon | Vector the Crocodile
Babylon Rogues
Jet the Hawk | Storm the Albatross | Wave the Swallow
Sol Dimension
Blaze the Cat | Marine the Raccoon
Coconut Crew
Colonel | Daikun | Kylok | Muzy | Setter | Tabby
Avatar | Caliburn the Sword | Chip | E-102 Gamma | Lumina Flowlight | Princess Elise | Professor Pickle | Shade the Echidna | Shahra | Silver the Hedgehog | The President | Tikal the Echidna | Void | Wisps | Yacker

Classic Universe
Amy Rose | Bark the Polarbear | Bean the Dynamite | Bomb | Heavy | Honey the Cat | Knuckles the Echidna | Mighty the Armadillo | Miles "Tails" Prower | Ray the Flying Squirrel | Sonic the Hedgehog

Archie Universe
Freedom Fighters
Amy Rose | Antoine D'Coolette | Big the Cat | Bunnie Rabbot | Cheese the Chao | Cream the Rabbit | Dulcy the Dragon | Miles "Tails" Prower | Nicole the Holo-Lynx | Rotor the Walrus | Sally Acorn | Sonic the Hedgehog
Angel Island Citizens
Knuckles the Echidna | Relic the Pika | Gixit
Chaotix Detective Agency
Charmy Bee | Espio the Chameleon | Vector the Crocodile
Mighty the Armadillo | Ray the Flying Squirrel
Team Dark
E-123 Omega | Rouge the Bat | Shadow the Hedgehog
Time and Space Travelers
Blaze the Cat | Marine the Raccoon | Silver the Hedgehog
Ben Muttski | Coral the Betta | Dulcy the Dragon | Gemerl the Gizord | Honey the Cat | Mina Mongoose | Pearly the Manta Ray | Professor Pickle | Razor the Shark | Remington | Uncle Chuck

Sonic Boom
Amy Rose | Buster | Cyborg Amy | Cyborg Knuckles | Cyborg Sonic | Cyborg Tails | FriendBot | Knuckles the Echidna | Miles "Tails" Prower | Perci | Shadow the Hedgehog | Sonic Cookie Eggman | Sonic the Hedgehog | Staci | Sticks the Badger | Vector the Crocodile | Zooey

IDW Universe
Team Sonic
Amy Rose | Knuckles the Echidna | Miles "Tails" Prower | Sonic the Hedgehog
Chaotix Detective Agency
Charmy Bee | Espio the Chameleon | Vector the Crocodile
Time and Space Travelers
Blaze the Cat | Silver the Hedgehog
Team Dark
E-123 Omega | Rouge the Bat | Shadow the Hedgehog
Other Members and Allies
Belle the Tinkerer | Cheese the Chao | Cream the Rabbit | Jewel the Beetle | Lanolin | Tangle the Lemur | Vanilla the Rabbit | Whisper the Wolf
Big the Cat | Mr. Tinker | Wisps

King Acorn | Knuckles the Echidna | Manic the Hedgehog | Sonia the Hedgehog |

Christopher Thorndyke | Chuck Thorndyke | Cosmo the Seedrian

Crazy Carl | Longclaw | Maddie Wachowski | Miles "Tails" Prower | Sonic the Hedgehog | Tom Wachowski | Wade Whipple