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Key points
- Configuration tool requires installed Java runtime libraries in order to run despite not being stated in the game's system requirements. You can use Sonic 4 Rewritten Launcher as a non-Java alternative to configure the game.
General information
- Steam Community Discussions
Availability
Essential improvements
- A C++ rewrite of the configuration tool for Sonic The Hedgehog 4: Episode 1 that removes the dependency to have Java runtime libraries installed despite the actual game not using Java.
Game data
Configuration file(s) location
Save game data location
Video
Configuration utility general settings.
- By default, game renders internally at 1280x720 and then upscales the content to match selected resolution. It's possible to raise the internal resolution to 1920x1080, however most 2D assets are done for 1280x720 and thus are upscaled regardless.
Input
Configuration utility keyboard remapping.
Configuration utility controller settings.
Audio
Audio feature |
State |
Notes |
Separate volume controls |
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Music, SFX |
Surround sound |
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Subtitles |
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No speech. |
Closed captions |
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Mute on focus lost |
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See Mute on focus lost. |
Royalty free audio |
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Localizations
Language |
UI |
Audio |
Sub |
Notes |
English |
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French |
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German |
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Italian |
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Japanese |
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Spanish |
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Mute on focus lost
Set mute in background[7]
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- Install Special K by following the Special K Unofficial Guide. Manual local installation may work better.
- Start the game and press Ctrl+⇧ Shift+← Backspace to toggle Special K's Control Panel.
- Expand Window Management and Input/Output Behavior.
- Enable Mute Game under Background Behavior.
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Issues fixed
4K Ultra HD Launcher Fixes
Use Sonic 4 Rewritten Launcher
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- See Sonic 4 Rewritten Launcher for running the launcher without compatibility fixes and without Java runtime dependencies.
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Change "SonicLauncher" Properties
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- Right click on
<path-to-game>\SonicLauncher.exe and go to properties.
- Go to compatibility and click on Change High DPI Settings.
- Check Program DPI box.
- Check High DPI Scaling Override box.
- Choose Scaling Performed by: Application.
- Apply and its done.
- Now the launcher should open normally and you will be able to change the resolution (up to 3840x2160 confirmed).
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Run the game at screen refresh rate
- Fullscreen mode defaults to 60 Hz, even if the screen refresh rate is set higher than that.
Set screen refresh rate[7]
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- Install Special K by following the Special K Unofficial Guide. Manual local installation may work better.
- Start the game once and close it to allow the configuration file of Special K to be created.
- Open
<path-to-game>\d3d9.ini or %USERPROFILE%\Documents\My Mods\SpecialK\Profiles\Sonic_vis.exe\SpecialK.ini depending on the installation method you used.
- Change
TargetFPS=0.0 to TargetFPS=60.0 .
- Change
RefreshRate=-1 to RefreshRate=0 .
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Mouse cursor visible during gameplay
Auto-hide mouse cursor[7]
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- Install Special K by following the Special K Unofficial Guide. Manual local installation may work better.
- Start the game and press Ctrl+⇧ Shift+← Backspace to toggle Special K's Control Panel.
- Expand Input Management and Mouse Cursor.
- Enable Hide When Not Moved and adjust Seconds Before Hiding to your liking.
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Other information
API
Technical specs |
Supported |
Notes |
Direct3D |
9.0c |
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Executable |
32-bit |
64-bit |
Notes |
Windows |
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Mods
- Mod manager for Sonic the Hedgehog 4: Episode I and Sonic the Hedgehog 4: Episode II.
- Contains higher quality textures from an official HD mobile port.
- Highly recommended to use alongside with Smoother Cel Shader mod shown below.
- Smooths out the cel-shaded textures to give them a nicer look based on the color edges of the original textures.
- Replaces the music of Splash Hill Zone with re-imagined versions by composers Tee Lopes & Jun Senoue.
- Removes the HUD from all gameplay stages and special stages.
System requirements
Windows |
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Minimum |
Recommended |
Operating system (OS) |
XP, Vista |
7 |
Processor (CPU) |
Intel Pentium 4 3.2 GHz AMD Athlon 64 3000+ |
Intel Core 2 Duo 2.4 GHz AMD Athlon 64 X2 4200+ |
System memory (RAM) |
1 GB 2 GB (Vista) |
2 GB |
Hard disk drive (HDD) |
500 MB | |
Video card (GPU) |
Nvidia GeForce 7600 ATI Radeon X1300 256 MB of VRAM DirectX 9 compatible
| Nvidia GeForce 8800 ATI Radeon HD 3800 512 MB of VRAM |
Sound (audio device) |
DirectX compatible | |
Notes
References