Released in October 1994 for the Sega Genesis, is more than just a sequel; it is a landmark in gaming history known for its revolutionary "Lock-on Technology." Originally intended to be part of a single, massive game with Sonic the Hedgehog 3 , it was split into two parts due to time constraints and the limited storage capacity of ROM cartridges. The Innovation: Lock-on Technology
The game picks up immediately after Sonic 3 . Sonic (or Knuckles) continues the quest to stop Dr. Robotnik from relaunching the Death Egg. Sonic & Knuckles - Sega-16 Sonic & Knuckles
Locking on Sonic 2 allows players to play through that entire game as Knuckles the Echidna , utilizing his unique abilities to find secrets unreachable by Sonic. Released in October 1994 for the Sega Genesis,