Sonic & Knuckles

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Sonic & Knuckles
Sonic & Knuckles.jpg
Developer(s) Sonic Team, Sega Technical Institute
Publisher(s) Sega
Series Sonic the Hedgehog
Platform(s) Virtual Console, Sega Genesis
Release date(s) Sega Mega Drive/Genesis
NA October 17, 1994
JP October 18, 1994
EU October 19, 1994
AUS November 1994
Virtual Console
JP October 27, 2009
EU February 12, 2010
NA February 15, 2010
Genre(s) Platform
Mode(s) Single-player
Input methods GameCube Controller, Classic Controller
Compatibility 4Stars4.pngEdit rating: Sonic & Knuckles
See also...

Dolphin Forum thread
Open Issues
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Sonic & Knuckles is a 1994 platform video game in the Sonic the Hedgehog series, developed by Sonic Team and the Sega Technical Institute for the Sega Genesis. In addition to being a standalone game, through a system dubbed "lock-on technology," Sonic & Knuckles acts as an expansion pack to both Sonic the Hedgehog 2 and Sonic the Hedgehog 3, the latter with which it was developed in tandem. The packs as unlockable games were included for Sonic Mega Collection. The Virtual Console release of the game emulates this function: it will detect if the player has the other games in the Wii's memory, and provide the user with a menu to select which combination of games they wish to play.


Slowdown in Special Stages

During the "Collect the Blue Spheres" Special Stages, the game will lag when a lot of spheres are on screen. This is a fault of Dolphin's emulated CPU not matching up perfectly with the Wiis. Changing the "emulated CPU Clock" to ~140% will fix the slowdown.


No configuration changes are known to affect compatibility for this title.

Version Compatibility

The graph below charts the compatibility with Sonic & Knuckles since Dolphin's 2.0 release, listing revisions only where a compatibility change occurred.

5.0-21453 (current)
2.0 (r5384)
Compatibility can be assumed to align with the indicated revisions. However, compatibility may extend to prior revisions or compatibility gaps may exist within ranges indicated as compatible due to limited testing. Please update as appropriate.


This title has been tested on the environments listed below:

Test Entries
Revision OS CPU GPU Result Tester
3.0-843 Windows 7 Intel Core i7-2600K @ 3.6 GHz Intel HD 3000 The game runs. but no picture. FPS: 120VPS: 60 Speed: 100% 23732
4.0.2 Windows 7 AMD FX 4130 @ 3.8 GHz AMD Radeon HD 6670 picture is visible but it flickers skittyz321
4.0-9196 Windows 10 Intel Core i5-3570K @ 3.8 GHz NVIDIA GeForce GTX 760 Runs well, but like other versions of the game the special stages lag at default CPU clock. JMC47

Gameplay Videos