Sonic Classics is a compilation game for the Sega Genesis that includes three titles from the Sonic the Hedgehog series: Sonic the Hedgehog, Sonic the Hedgehog 2, and Dr. Robotnik's Mean Bean Machine. Each game retains its original controls and is accessible via a menu. However, only one game can be played at a time, and Sonic the Hedgehog 2 does not support lock-on functionality with Sonic & Knuckles.
Sonic Classics compiles three games from the Sonic The Hedgehog series onto one cartridge. They are: Sonic the Hedgehog, Sonic the Hedgehog 2, Dr. Robotnik's Mean Bean Machine
Each of the three games control the same as their stand-alone versions. The games are selected from a menu, however only one game can be played at once. Also, even though Sonic The Hedgehog 2 is on this cartridge, it is not possible for this game to lock-on to Sonic And Knuckles to create Knuckles the Echidna.