The player controls the titular Sonic the Hedgehog, who aims to stop Robotnik's plans by freeing his animal friends and collecting all Chaos Emeralds himself. Eggman' in the original Japanese release) has trapped the animal inhabitants of South Island in cybernetic shells and metal capsule prisons.

In an attempt to steal the six Chaos Emeralds and harness their power, the game's antagonist Dr. Its success led to the development of subsequent games in the Sonic the Hedgehog series, as well as the creation of a media franchise of spin-off products featuring the character. It was commercially successful, increasing the popularity of the Mega Drive/Genesis and establishing Sonic the Hedgehog as the company's mascot. Sonic the Hedgehog received positive reviews from critics, who praised the game's visuals and its sense of speed. After a hedgehog was decided on as the main character, the development group was renamed Sonic Team. Robotnik has trapped, and collect six magical emeralds known as the Chaos Emeralds.ĭevelopment of Sonic the Hedgehog began in 1990, when Sega ordered its AM8 development team to develop a game featuring a mascot for the company. Robotnik's plans for world domination, release the animals Dr.

The game's story focuses on Sonic's efforts to stop Dr.

First released in North America, Europe, and Australia on June 23, 1991, the game is the first installment in the Sonic the Hedgehog series, chronicling the adventures of the titular character in his quest to defeat the series' antagonist Dr. Sonic the Hedgehog is a platform video game developed by Sonic Team and published by Sega for the Sega Mega Drive/Genesis. This game can be played also in a versions for NES, SMS and Game Gear. If you think that the game in your browser does not behave as it should, try to choose another online emulator from this table.

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