Sonic & Knuckles: all version differences
5 documented differences between the releases of Sonic & Knuckles, each with a source. Back to the main page for names, releases and where to play.
Category × version
| Category | Genesis cartridge | Xbox 360/PS3 (2009) | Wii Virtual Console | Xbox Live Arcade | Saturn (Sonic Jam) | Sonic Origins (2022) |
|---|---|---|---|---|---|---|
| Content | 1 | 1 | 1 | 1 | 0 | 1 |
| Gameplay | 0 | 0 | 0 | 0 | 1 | 0 |
Version differences
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ContentGenesis cartridge
The cartridge has a lock-on slot. With Sonic 3 it becomes Sonic 3 & Knuckles (Knuckles in Sonic 3's levels, Tails in Sonic & Knuckles' levels, saving, Super Emeralds and Hyper forms); with Sonic 2 it makes Knuckles playable; with the first Sonic or other Genesis games it unlocks Blue Sphere.1
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ContentXbox 360/PS3 (2009)
The Sonic's Ultimate Genesis Collection version has no lock-on feature; the developers blamed tight development time.1
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ContentWii Virtual ConsoleXbox Live Arcade
The digital Wii and Xbox 360 versions unlock lock-on content only if the related games are also owned on the same system.1
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GameplaySaturn (Sonic Jam)
The Saturn compilation Sonic Jam adds 'Normal' and 'Easy' remix modes.1
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ContentSonic Origins (2022)
Sonic Origins includes the game only as part of Sonic 3 & Knuckles, rebuilt in the Retro Engine by Simon Thomley of Headcannon.1
Sources
Checked: 2026-10-13