Sonic the Hedgehog 4: Episode I

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Sonic the Hedgehog 4: Episode I
Developer(s) Dimps, Sonic Team
Publisher(s) Sega
Series Sonic the Hedgehog
Platform(s) WiiWare
Release date(s) JP October 12, 2010
NA October 11, 2010
EU October 15, 2010
Genre(s) Platform, Action-adventure
Mode(s) Single-player
Input methods Wii Remote, Classic Controller
Compatibility 5Stars5.pngEdit rating: Sonic the Hedgehog 4: Episode I
See also...

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Sonic the Hedgehog 4: Episode I is a platforming video game released developed by Dimps and Sonic Team for the Wii's WiiWare service. It is billed as the successor to Sonic & Knuckles on the Sega Genesis/Mega Drive. Designed to be similar to the classic Genesis games, Sonic 4 combines the traditional 2D gameplay of classic sonic games with 2.5D graphics and new gameplay elements. Players control Sonic running, jumping, and defeating badniks through levels at high speeds. They may also use power-ups such as the iconic speed-up shoes, barrier shields, and invincibility. The game also features special stages where the player must go through a maze, based on the special stages from the original Sonic the Hedgehog, to find the seven Chaos Emeralds; the reward for this is the ability to play as Super Sonic in normal levels, not seen since Sonic & Knuckles.


There are no reported problems with this title.


Only configuration options for the best compatibility where they deviate from defaults are listed.


Config Setting Notes
Per-Pixel Lighting Off Causes graphical glitches

Version Compatibility

The graph below charts the compatibility with Sonic the Hedgehog 4: Episode I since Dolphin's 2.0 release, listing revisions only where a compatibility change occurred.

5.0-21593 (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
r6199 Windows 7 Intel Pentium P6200 @ 2.13 GHz Intel HD Graphics 3000 40-60FPS, runs at full speed but slight performance drops when Sonic's speed increases.
r6278 Windows 7 Intel Core 2 Quad Q9550 ATI Radeon HD 5850 60FPS runs perfectly
r6285 Windows 7 AMD 965 Phenom II X4 @ 3.4 GHz ATI Radeon HD 5770 [Sonic The Hedgehog 4 Episode 1 on Dolphin Emulator (720p)] dolphinemulator
r6372 Windows 7 Intel Core 2 Quad Q8300 ATI Radeon HD 4650 60FPS runs perfectly
r6758 Mac OS X 10.6.8 Intel Core 2 Duo @ 2.13 GHz NVIDIA GeForce 9400M 60FPS on menu screens, but slowdowns to 20-30FPS in-game, especially when running. Small graphical glitches also present. Ac
r6894 Windows 7 Intel Core 2 Solo @ 2.2 GHz Intel 4 Series Mobile Chipset 15FPS runs slow
r6894 Windows XP Intel Pentium T4200 Dual-Core @ 2 GHz NVIDIA GeForce G105M 31FPS runs quite slow
r7670 Windows 7 Intel Core i5-2500K @ 4.1 GHz AMD Radeon HD 6850 Works totally fine. No slowdowns at 3x Native. MegaJump
r7695 Windows 7 Intel Core i5-430M @ 2.27 GHz ATI Radeon HD 5450 Works totally fine, 60FPS runs perfectly. IguanaMasterz
3.0-373 Mac OS X 10.7.2 Intel Core i7-2675QM @ 2.2 GHz AMD Radeon HD 6750M 60FPS, runs great. jedivulcan
3.0-458 Windows 7 AMD Athlon II X3 450 @ 3.2 GHz AMD Radeon HD 6670 60FPS all the way. No problems even using real Wii Remote. Faefdsedf
3.0-505 Windows Vista Intel Pentium @ 2 GHz Mobile Intel 4 Series Express Chipset Family Lags a lot at 15FPS, has a large amount of graphical glitches. Mchccjg12
3.0-645 Windows 7 AMD FX 8120 @ 3.8 GHz ATI Radeon HD 6850 Smooth 60FPS, occasional audio glitches Sleepsong
3.0-688 Mac OS X 10.7.4 Intel Core i7-2675QM @ 2.2 GHz AMD Radeon HD 6750M 55/60FPS. Mild slowdown when releasing animals at the end of boss stages. Played through Splash Hill Zone with no distorted graphical artifact or glitches seen in prior builds tested. jedivulcan

Gameplay Videos