This article is about the first video game in the Sonic series. For other uses, see Sonic the Hedgehog (disambiguation).
Sonic The Hedgehog
Sonic1 box usa
Sonic symbol
North American box art.
Developer(s) Sonic Team
Publisher(s) SEGA
Series Sonic
Designer(s) Hirokazu Yasuhara
Programmer(s) Yuji Naka
Artist(s) Naoto Ohshima
Jina Ishiwatari
Rieko Kodama
Composer(s) Masato Nakamura
Engine Yuji Naka
Release date June 23, 1991
Mega Drive / Genesis
NAJune 23, 1991
EU June 23, 1991
JPJuly 26, 1991
Master System
WWOctober 25, 1991
Game Gear
JPDecember 28, 1991
WWDecember 1991
Game Boy Advance
NAJanuary 13, 2006
EUNovember 14, 2006
Genre(s) Platform, Adventure
Mode(s) Single player
Ratings VRC: GA Pan European
Platform(s) Sega Mega Drive/Genesis, iPod, iPhone OS Mobile phone, Virtual Console, Game Boy Advance, Xbox 360 (XBLA)
Media 4-Megabit cartridge
Input methods Game controller, Click wheel

Sonic the Hedgehog (ソニック・ザ・ヘッジホッグ) is a platform video game and the first game in the Sonic series. It was released as SEGA's in 1991 response to Nintendo's mascot, Mario. The game's development began in 1990 when SEGA ordered its AM8 development team to create a game featuring a mascot for the company. After considering a number of suggestions, the developers decided on a blue hedgehog with spikes along his head and spine and renamed themselves "Sonic Team" to match their character. Sonic the Hedgehog, designed for fast gameplay, was influenced by the games of Super Mario series creator, Shigeru Miyamoto. Sonic the Hedgehog uses a novel technique that allows Sonic's sprite to roll along curved scenery, which originated in a tech demo created by the game's programmer, Yuji Naka.

In Sonic the Hedgehog, the player guides a blue hedgehog through several levels while collecting rings and extra lives in order to stop the plot of an evil mad scientist called Dr. Ivo Robotnik (a.k.a. Dr. Eggman).

In the Super Smash Flash series

The eponymous main character Sonic the Hedgehog, who is playable in both Super Smash Flash and Super Smash Flash 2, first appeared in this game. Some of his trademark moves and abilities are taken from this game.

The stage Green Hill Zone also comes from this game. It consists of a large curved foreground which occasionally breaks apart. It has a big loop in the background.

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