Sonic and Knuckles (Sega)
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Sonic and Knuckles (Sega)

Sonic & Knuckles is a celebrated 1994 platform game by Sega, featuring the iconic Sonic the Hedgehog and his rival-turned-ally, Knuckles the Echidna. This game is unique in the Sonic series as it allows players to embark on separate adventures with each character to thwart the evil Dr. Robotnik’s plans. Sonic’s mission is to prevent the launch of the orbital weapon, the Death Egg, while Knuckles battles against Robotnik’s henchman, EggRobo.


“Sonic & Knuckles” continues the fast-paced side-scrolling action familiar to the series, with players dashing through levels, collecting rings, and defeating enemies. Distinctively, this installment allows you to choose between Sonic or Knuckles at the start, each with unique abilities. Sonic has higher jumps and shield powers, whereas Knuckles can glide and climb, offering different ways to navigate the six expansive levels divided into two acts each.

Unlike its predecessor, “Sonic the Hedgehog 3,” this game lacks a multiplayer option and does not feature a save system. Each level culminates in challenging boss fights, with mini-bosses in the first act and main bosses in the second. The game mechanics and design reflect its original development as part of “Sonic the Hedgehog 3,” intended to be one expansive game.

Special Features and Stages

The game includes immersive bonus stages that test agility and collecting skills, and special stages that are crucial for gathering all seven Chaos Emeralds. Achieving all Emeralds transforms Sonic or Knuckles into their invincible super forms, dramatically boosting their abilities.


The plot of “Sonic & Knuckles” picks up where “Sonic 3” left off, with the crash of the Death Egg on Angel Island, sparking new conflict between Sonic and Knuckles. As the story unfolds, both characters realize their true enemy, leading to a temporary alliance against a common foe. The narrative splits based on the character chosen, providing unique perspectives and extending replay value.

In Knuckles’ campaign, the story extends beyond Sonic’s conclusion, adding depth to his character and expanding the lore of the Sonic universe. The ending varies depending on whether the player has collected all the Chaos Emeralds, adding a consequential element to the gameplay.


Critically acclaimed for its advanced graphics, intricate level design, and the depth of its gameplay mechanics, “Sonic & Knuckles” is fondly remembered as one of the high points of the Sega Genesis era. The game’s innovative “lock-on” technology, allowing it to connect physically with “Sonic 3” for combined gameplay, set a precedent in gaming technology.

Overall, “Sonic & Knuckles” not only continues the legacy of the Sonic series but enriches it, providing both a satisfying conclusion and a new beginning for the characters and the story.


Sonic and Knuckles (Sega) is developed by Sega Technical Institute.

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