In Sonic the Hedgehog 2, Sonic and his new sidekick Miles 'Tails' Prower have found out that Dr. It was directly followed by Sonic the Hedgehog 3 in 1994. It was created as the sequel to Sonic the Hedgehog, but as of Sonic Origins, it takes place after the events of Sonic the Hedgehog CD. It was released in Japan on November 21, 1992, and in North America and Europe on November 24. Sonic the Hedgehog 2 ( ソニック・ザ・ヘッジホッグ2, Sonikku za Hejjihoggu Tsū ?) is a platform game in the Sonic the Hedgehog series, developed by Sonic Team members in collaboration with Sega Technical Institute, and published by Sega for the Sega Mega Drive/Genesis.