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Snes9x GX

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SNES9x GX is a Super Nintendo emulator for the Wii based on the PC emulator SNES9x 1.51. SoftDev is responsible for the original SNES9x 1.51 GameCube port, whose work was continued by crunchy2. Wii support was added by michniewski, and SNES9x 1.51 was ported by Tantric. The project is currently being maintained by michniewski and Tantric.



  • Based on Snes9x 1.51 - superior ROM compatibility
  • Wiimote, Nunchuk, Classic, and Gamecube controller support
  • Multi-tap support, up to 4 players
  • SNES Superscope, Mouse, Justifier support
  • Cheat support
  • Auto Load/Save Game Snapshots and SRAM
  • Custom controller configurations
  • SD, USB, DVD (requires DVDx), SMB, GC Memory Card, Zip, and 7z support
  • Autodetect PAL/NTSC, 16:9 widescreen support, filtered/unfiltered video modes
  • Turbo Mode - up to 2x the normal speed
  • Zoom option to zoom in/out
  • Open Source!

Setup & Installation

Unzip the archive. You will find the following folders inside:

  • apps - Contains Homebrew Channel ready files (see Homebrew Channel instructions below)
  • snes9x - Contains the directory structure required for storing roms, saves, and cheats (see below)

Via Homebrew Channel

The most popular method of running homebrew on the Wii is through the Homebrew Channel. If you already have the channel installed, just copy over the apps folder included in the archive into the root of your SD card.

Remember to also create the snes9x directory structure required. See above.

Loading Games

By default, roms are loaded from "snes9x/roms/".

Your SNES rom images must be in the Super Magicom (SMC) or FIG format. Generally, all images you find will be in this format, but if you run across one that isn't please download RTOOL which will allow you to convert the image into SMC format.

From DVD

  • ROMs can be burned to a DVD-/+R (4.7GB max size & ISO 9660 file format) but you need to install DVDx on your Wii.

From Network (via SMB)

Using the emulator via network requires that your Wii is configured for your wireless network, and that you've set up a file share. You must provide a username, password, share name, and IP address to log in to the file server (in settings.xml). This XML file is created for you upon first loading the emulator and entering/exiting Preferences. Here's an example snippet for your XML configuration file:

<section name="Network" description="Network Settings">
   <setting name="smbip" value="" description="Share Computer IP" />
   <setting name="smbshare" value="wiifiles" description="Share Name" />
   <setting name="smbuser" value="yourusername" description="Share Username" />
   <setting name="smbpwd" value="yourpassword" description="Share Password" />

Also be sure to mirror the required directory structure within your share folder, or change the LoadFolder and SaveFolder values in the XML file. See the tinysmb page for additional information and troubleshooting.


By default, cheats are loaded from "/snes9x/cheats/". Cheat files must be placed in the cheats folder and named identically to the ROM name, except with a CHT extension. After putting the cheat file in the proper place and naming it correctly, you can access cheats in-game by pressing 'Home' after loading a game. A Cheats menu option should be available.

Language Patches (IPS/UPS/PPF)

IPS files must be placed in the same folder as the ROM you are loading, and named identically to the ROM name, except with a IPS extension. They will be loaded automatically upon loading the game.

Official Release Thread/Support Forum


In menu

      +     Action
  /   or     /     /   or     /   or   or   Navigate line per line Up/Down
        Enter to the selected menu or change selected option
        Back to previous menu

In File explorer

      +     Action
  /   or     /     /   or   or     /   or   Navigate line per line Up/Down
  /   or     /     /   or     /   Down/Up one full page
        Select item (directory or file)
        Back to previous directory
 + + +  or Left        Emulator menu

In game (by default)

These controls can be changed in "Controller Configuration" menu.

      +     Action
  or       or     or   Snes DPad
 + + +  or Left        Emulator menu
 Right  Right Turbo Mode
 Up/Down  Up/Down Zoom In/out

In game (Superscope)

    Fire button
    Cursor button
    Aim Offscreen
    Turbo ON
    Turbo OFF

In game (Mouse)

    Move the cursor
    Left click
    Right click

In game (Justifier)

    Fire button
    Aim Offscreen


008 - December 24, 2008

  • Fixed unstable SD card access
  • Proper SD/USB hotswap (Wii only)
  • Auto-update feature (Wii only)
  • Rewritten SMB access - speed boost, NTLM now supported (Wii only)
  • Improved file access code
  • Resetting preferences now resets controls
  • Fixed "invalid file size" error on smaller games (eg: Space Invaders)
  • Fixed hangup in Super Mario RPG
  • Minor bug fixes

007 - November 19, 2008

  • added: SDHC support
  • added: SD/USB hot-swapping
  • added: zoom saving
  • added: IPS/UPS/PPF patch support
  • added: Qoob modchip support (thanks emukidid!)
  • added: Added console/remote power button support (Wii only)
  • added: Added reset button support - resets game (Wii only)
  • changed: Settings file is now named settings.xml and is stored in the same folder as the DOL - eg: apps/vbagx/settings.xml (Wii only)
  • fixed: swc, sfc file support
  • fixed: inverted sound channels
  • fixed: some game crashes
  • fixed: snapshot saving for games with SPC7110, BS, DSP, or CX4
  • fixed: justifier support
  • fixed: superscope turbo button
  • fixed: widescreen support
  • fixed: ActRaiser 2 issues
  • fixed: Invalid memory accesses in C4 and OBC1. MMX3 Toxic Seahorse stage now can be emulated with HDMA. (zones)
  • fixed: Updated snapshot to prevent desync. Added some variables related to APU and HDMA. (gocha)
  • fixed: zoom issues (thanks eke-eke!)
  • fixed: original modes (thanks eke-eke!)
  • fixed: vertical scaling for filtered/unfiltered modes (thanks eke-eke!)

006 - October 15, 2008


  • added: 480p for GameCube
  • added: Sound sync
  • added: 7z support
  • changed: Faster SD/USB access (readahead cache enabled)
  • fixed: Video offset issues
  • fixed: BS-X games work now
  • fixed: Wii DVD works now
  • fixed: DVD re-enabled for GameCube
  • fixed: Nunchuk analog stick issues
  • fixed: Many crashes, memory leaks, etc


  • added: Video shift options
  • changed: Turn DVD motor off option re-enabled for GameCube

005 - September 23, 2008


  • added: Superscope/mouse/justifier support, with Wii remote
  • added: 3 render modes - Original, Filtered, Unfiltered
  • added: widescreen compensation option
  • added: DVD support on the Wii (note that many users are currently reporting problems loading from DVD- fixed in next revision)
  • changed: zoom - limited range, added reset zoom option


  • added: now uses SNES 1.51 core (thanks to eke-eke for help with this)
  • added: cheats menu! Loads .CHT file from /snes9x/cheats folder, .CHT file name must match file name of ROM
  • added: load/save preference selector. ROM, SRAM, Freeze, and preferences are saved/loaded according to these
  • added: preliminary Windows file share loading/saving (SMB) support on Wii: You can input your network settings into snes9xGX.xml, or edit s9xconfig.cpp from the source code and compile.
  • added: 'Auto' settings for save/load - attempts to automatically determine your load/save device(s) - SD, USB, Memory Card, DVD, SMB
  • added: ROM Information page
  • added: Game Menu - all game-specific options are here now: SRAM save/load, Snapshot save/load, game reload, etc
  • added: Credits page
  • fixed: sd gecko works now
  • fixed: full USB support
  • changed: menu structure
  • changed: preferences are now loaded and saved in XML format. You can open snes9xGX.xml edit all settings, including some not available within the program
  • changed: if Home button is pressed when a game is running, Game Menu pops up
  • changed: if preferences can't be loaded at the start and/or are reset, preferences menu pops up - remove to save your preferences!
  • changed: SRAM load - game reloaded automatically after loading SRAM

004 - August 5, 2008

  • added: option to disable AA filtering (snes graphics 'crisper', AA now default OFF)
  • added: mapped zooming and turbo mode to classic controller
  • added: preliminary usb support (loading)
  • changed: sram and freezes now saved by filename, not internal romname. If you have multiple versions of the same game, you can now have srams and freezes for each version. A prompt to convert to the new naming is provided for sram only.
  • changed: by default, autoload/save sram and freeze enabled

003 - July 25, 2008

  • added: alphabetical file sorting
  • added: background logo/backdrop + nicer menus
  • added: scrolling in ROM selector
  • fixed: switching between pal/ntsc ROMS doesn't mess up timings
  • fixed: GC controller config works now
  • fixed: freeze autoloading on ROM load
  • fixed: zipped ROMS should now load in a reasonable time
  • fixed: precompiled dols for autosaving to various locations (see readme)
  • changed: GC default quickload slot (to sd) (thanks kerframil)
  • changed: default load/save dirs are now "/snes9x/roms" and "/snes9x/saves/" (thanks kerframil)
  • changed: Classic X and Y defaults aren't switched
  • changed: if autosave is enabled, it doesn't ask to save SRAM anymore. It is saved in the background.
  • updated README

002 - July 21, 2008

  • added: classic and nunchuk support
  • added: all controllers can now be configured
  • added: GC version (untested)
  • changed: mappings are no longer stored in SRAM, but in config file. This means no per-game configurations, but one global config per controller.
  • one makefile to make all versions. (thanks to snes9x143 SVN)

001 - July 12, 2008

  • compiles with latest devkitppc (r15)
  • now uses libfat (can use front sd slot on wii)
  • updated menu items a bit
  • wiimote support
  • fixed: autoload sram/freeze
  • fixed: rom plays immediately after loading

Third party releases

Unofficial version with more archive format support

Supports the following formats in addition to ZIP:

  • gzip (.gz, .tar.gz)
  • bzip2 (.bz2, .tar.bz2)
  • JMA (similar to 7zip, but with better compression)

Download with source:

Based on version 004.