SegaSonic the Hedgehog

SegaSonic the Hedgehog
Developers: Sonic Team, Sega AM3 Publisher: Sega Platform: Arcade (Sega System 32) Released in JP: June 1, 1993 Released in US: September 18, 1993 Released in EU: September 18, 1993 Released in AU: October 31, 1993 Released in KR: December 10, 1993 Released in BR: November 19, 1993 This game has unused graphics. This game has a prototype article

SegaSonic the Hedgehog was Sonic the Hedgehog, Mighty the Armadillo, and Ray the Flying Squirrel's only game together until the release of Sonic Mania Plus in 2018. It was also the first Sonic game to have voice acting.

To do: There are loads more sprites that could be included here, including Robotnik's many, many other sprites (Source). Check for other things, like unused sounds or debug menus to uncover.

Unused Graphics

Title Graphics

Unused	Used

Early versions for the characters on the title screen, without the shine on the eyes and the nose missing/unfinished. While Sonic was seen in the prototype, Ray and Mighty were nowhere to be seen outside of the graphics data.

Player Character Graphics

Some sprites of the characters flexing their muscles, which possibly would have been used when continuing the game.

Unused	Used

Sonic had his face mercifully redrawn to make him look less like roadkill, while Ray got his patagia enlarged.

Unused	Used

Sonic got his arms reanimated, Ray had his proportions slightly corrected, and Mighty's face was redrawn.

(Source: Ragey, Kallus)

Eggman Sprites

It seems that Eggman was supposed to use some gadgets and thingamajigs himself to prevent players from reaching him.

English Version

Although the international releases were, for whatever reason, not localized or translated, there are many remnants of a planned English-language version.

A largely complete set of sprites of Robotnik as he looked on ABC's Sonic the Hedgehog cartoon (generally nicknamed SatAM), for use in the American version. More than likely set for a promotion of SatAM just like Dr. Robotnik's Mean Bean Machine with Adventures of Sonic the Hedgehog. The game uses the Japanese sprites in all regions. The only sprites that appear to be missing are for him riding around on the title screen and the intro when he traps the main character(s).

Even the little details were accounted for to complete the Robotnik experience.

A complete set of English dialogue bubbles. Interestingly, one of the bubbles has both an "Eggman" and a "Robotnik" variant.

(Source: Ragey, Kallus)

Miscellaneous

These might have been used when setting to multiple coins per one credit, but they don't appear no matter what dipswitch settings are used.

A sprite viewer menu of sorts.

(Source: Ragey, Kallus)