Sonic the Hedgehog 2

Sonic the Hedgehog 2 is a platformer video game developed by Sonic Team and Sega Technical Institute and published by Sega, and the second title in the  series. It follows the journey of Sonic the Hedgehog as he seeks to stop the evil Dr. Robotnik from kidnapping the animals of West Side Island in his quest to find the Chaos Emeralds and build the ultimate weapon, the Death Egg.

Sonic the Hedgehog 2 was released for the Sega Genesis on November 21, 1992 in Japan, with a release worldwide within the following two weeks.