Sonic & Knuckles is a platform game developed by SEGA for the Genesis/Mega Drive in 1994. As a continuation of Sonic the Hedgehog 3, players can control either Sonic, with his high-speed running and spin dash moves, or Knuckles, who can glide and climb walls. The game stands out with its innovative lock-on technology, which allows the cartridge to be physically attached to other Sonic games, expanding gameplay. The action unfolds across diverse and colorful zones with challenging obstacles and enemies, culminating in battles against the diabolical Dr. Robotnik. Its genre is action-platformer.