Libretro Snes9X is an upstream port of Snes9x, a portable Super Nintendo Entertainment System emulator to Libretro.
¶ 
License
This core is under non-commercial license.
¶ 
Compatibility
| RPI0/RPI1 | RPI3 | RPI4/RPI400 | RPI5 | ODROID XU4 | OGA/OGS/RG351 | PC | RG353 |
|---|---|---|---|---|---|---|---|
| ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ |
¶ 
Features
| Feature | Supported |
|---|---|
| Restart | ✔ |
| Saves | ✔ |
| States | ✔ |
| Rewind | ✔ |
| Netplay | ✔ |
| Core Options | ✔ |
| RetroAchievements | ✔ |
| RetroArch Cheats | ✔ |
| Native Cheats | ✔ |
| Controls | ✔ |
| Remapping | ✔ |
| Multi-Mouse | ✔ |
| Subsystems | ✔ |
| Softpatching | ✔ |
¶ 
BIOS
No bios is required.
¶ 
Roms
¶ Supported extensions
Roms must have the extension:
- .fig
- .gd3
- .sfc
- .smc
- .swc
- .zip
- .7z
This system supports compressed roms in .zip/.7z format. However, be careful, it is only an archive.
The files contained in the .zip/.7z must correspond to the extensions mentioned above.
Moreover, each .zip/.7z file must contain only one compressed rom.
¶ Location
Put the roms like this:
┣ 📁 recalbox
┃ ┣ 📁 share
┃ ┃ ┣ 📁 roms
┃ ┃ ┃ ┣ 📁 snes
┃ ┃ ┃ ┃ ┣ 🗒 game.zip
The roms using No-Intro format are highly recommended.
For more information about roms, go to this tutorial!
¶ 
Advanced configuration of the emulator
To be able to keep your custom configurations during an upgrade, we advise you to use our configuration override feature.
¶ Accessing to options
You can configure various options in two different ways.
- Via RetroArch menu:
┣ 📁 RetroArch Menu
┃ ┣ 📁 Core options
┃ ┃ ┣ 🧩 Name_option
- Via the file
retroarch-core-options.cfg:
┣ 📁 recalbox
┃ ┣ 📁 share
┃ ┃ ┣ 📁 system
┃ ┃ ┃ ┣ 📁 configs
┃ ┃ ┃ ┃ ┣ 📁 retroarch
┃ ┃ ┃ ┃ ┃ ┣ 📁 cores
┃ ┃ ┃ ┃ ┃ ┃ ┣ 🧩 retroarch-core-options.cfg
¶ Core options
| Options | Options values | Variables (for configuration override) | Variables values |
|---|---|---|---|
| Console Region (Reload Core) | Auto ✅ / NTSC / PAL |
snes9x_region |
auto / ntsc / pal |
| Preferred Aspect Ratio | 4:3 ✅ / Uncorrected / Auto / NTSC / PAL |
snes9x_aspect |
4:3 / uncorrected / auto / ntsc / pal |
| Crop Overscan | Enabled ✅ / Disabled |
snes9x_overscan |
enabled / disabled |
| Hi-Res Blending | Disabled ✅ / Merge / Blur |
snes9x_hires_blend |
disabled / merge / blur |
| Blargg NTSC Filter | Disabled ✅ / Monochrome / RF / Composite / S-Video / RGB |
snes9x_blargg |
disabled / monochrome / rf / composite / s-video / rgb |
| Audio Interpolation | Gaussian ✅ / Cubic / Sinc / None / Linear |
snes9x_audio_interpolation |
gaussian / cubic / sinc / none / linear |
| Allow Opposing Directions | Disabled ✅ / Enabled |
snes9x_up_down_allowed |
disabled / enabled |
| SuperFX Overclocking | 50% / 60% / 70% / 80% / 90% / 100% ✅ / 150% / 200% / 250% / 300% / 350% / 400% / 450% / 500% |
snes9x_overclock_superfx |
50% / 60% / 70% / 80% / 90% / 100% / 150% / 200% / 250% / 300% / 350% / 400% / 450% / 500% |
| Reduce Slowdown (Unsafe) | Disabled ✅ / Light / Compatible / Max |
snes9x_overclock_cycles |
disabled / light / compatible / max |
| Reduce Flickering (Unsafe) | Disabled ✅ / Enabled |
snes9x_reduce_sprite_flicker |
disabled / enabled |
| Randomize Memory (Unsafe) | Disabled ✅ / Enabled |
snes9x_randomize_memory |
disabled / enabled |
| Block Invalid VRAM Access | Enabled ✅ / Disabled |
snes9x_block_invalid_vram_access |
enabled / disabled |
| Echo Buffer Hack (Unsafe, only enable for old addmusic hacks) | Disabled ✅ / Enabled |
snes9x_echo_buffer_hack |
disabled / enabled |
| Light Gun Mode | Light Gun / Touchscreen |
snes9x_lightgun_mode |
Lightgun / Touchscreen |
| Super Scope Reverse Trigger Buttons | Disabled ✅ / Enabled |
snes9x_superscope_reverse_buttons |
disabled / enabled |
| Super Scope Crosshair | 0 / 1 / 2 ✅ / 3 / 4 / 5 / 6 / 7 / 8 / 9 / 10 / 11 / 12 / 13 / 14 / 15 / 16 |
snes9x_superscope_crosshair |
0 / 1 / 2 / 3 / 4 / 5 / 6 / 7 / 8 / 9 / 10 / 11 / 12 / 13 / 14 / 15 / 16 |
| Super Scope Color | White ✅ / White (blend) / Red / Red (blend) / Orange / Orange (blend) / Yellow / Yellow (blend) / Green / Green (blend) / Cyan / Cyan (blend) / Sky / Sky (blend) / Blue / Blue (blend) / Violet / Violet (blend) / Pink / Pink (blend) / Purple / Purple (blend) / Black / Black (blend) / 25% Grey / 25% Grey (blend) / 50% Grey / 50% Grey (blend) / 75% Grey / 75% Grey (blend) |
snes9x_superscope_color |
White / White (blend) / Red / Red (blend) / Orange / Orange (blend) / Yellow / Yellow (blend) / Green / Green (blend) / Cyan / Cyan (blend) / Sky / Sky (blend) / Blue / Blue (blend) / Violet / Violet (blend) / Pink / Pink (blend) / Purple / Purple (blend) / Black / Black (blend) / 25% Grey / 25% Grey (blend) / 50% Grey / 50% Grey (blend) / 75% Grey / 75% Grey (blend) |
| Justifier 1 Crosshair | 0 / 1 / 2 / 3 / 4 ✅ / 5 / 6 / 7 / 8 / 9 / 10 / 11 / 12 / 13 / 14 / 15 / 16 |
snes9x_justifier1_crosshair |
0 / 1 / 2 / 3 / 4 / 5 / 6 / 7 / 8 / 9 / 10 / 11 / 12 / 13 / 14 / 15 / 16 |
| Justifier 1 Color | White / White (blend) / Red / Red (blend) / Orange / Orange (blend) / Yellow / Yellow (blend) / Green / Green (blend) / Cyan / Cyan (blend) / Sky / Sky (blend) / Blue ✅ / Blue (blend) / Violet / Violet (blend) / Pink / Pink (blend) / Purple / Purple (blend) / Black / Black (blend) / 25% Grey / 25% Grey (blend) / 50% Grey / 50% Grey (blend) / 75% Grey / 75% Grey (blend) |
snes9x_justifier1_color |
White / White (blend) / Red / Red (blend) / Orange / Orange (blend) / Yellow / Yellow (blend) / Green / Green (blend) / Cyan / Cyan (blend) / Sky / Sky (blend) / Blue / Blue (blend) / Violet / Violet (blend) / Pink / Pink (blend) / Purple / Purple (blend) / Black / Black (blend) / 25% Grey / 25% Grey (blend) / 50% Grey / 50% Grey (blend) / 75% Grey / 75% Grey (blend) |
| Justifier 2 Crosshair | 0 / 1 / 2 / 3 / 4 ✅ / 5 / 6 / 7 / 8 / 9 / 10 / 11 / 12 / 13 / 14 / 15 / 16 |
snes9x_justifier2_crosshair |
0 / 1 / 2 / 3 / 4 / 5 / 6 / 7 / 8 / 9 / 10 / 11 / 12 / 13 / 14 / 15 / 16 |
| Justifier 2 Color | White / White (blend) / Red / Red (blend) / Orange / Orange (blend) / Yellow / Yellow (blend) / Green / Green (blend) / Cyan / Cyan (blend) / Sky / Sky (blend) / Blue / Blue (blend) / Violet / Violet (blend) / Pink ✅ / Pink (blend) / Purple / Purple (blend) / Black / Black (blend) / 25% Grey / 25% Grey (blend) / 50% Grey / 50% Grey (blend) / 75% Grey / 75% Grey (blend) |
snes9x_justifier2_color |
White / White (blend) / Red / Red (blend) / Orange / Orange (blend) / Yellow / Yellow (blend) / Green / Green (blend) / Cyan / Cyan (blend) / Sky / Sky (blend) / Blue / Blue (blend) / Violet / Violet (blend) / Pink / Pink (blend) / Purple / Purple (blend) / Black / Black (blend) / 25% Grey / 25% Grey (blend) / 50% Grey / 50% Grey (blend) / 75% Grey / 75% Grey (blend) |
| M.A.C.S. Rifle Crosshair | 0 / 1 / 2 ✅ / 3 / 4 / 5 / 6 / 7 / 8 / 9 / 10 / 11 / 12 / 13 / 14 / 15 / 16 |
snes9x_rifle_crosshair |
0 / 1 / 2 / 3 / 4 / 5 / 6 / 7 / 8 / 9 / 10 / 11 / 12 / 13 / 14 / 15 / 16 |
| M.A.C.S. Rifle Color | White ✅ / White (blend) / Red / Red (blend) / Orange / Orange (blend) / Yellow / Yellow (blend) / Green / Green (blend) / Cyan / Cyan (blend) / Sky / Sky (blend) / Blue / Blue (blend) / Violet / Violet (blend) / Pink / Pink (blend) / Purple / Purple (blend) / Black / Black (blend) / 25% Grey / 25% Grey (blend) / 50% Grey / 50% Grey (blend) / 75% Grey / 75% Grey (blend) |
snes9x_rifle_color |
White / White (blend) / Red / Red (blend) / Orange / Orange (blend) / Yellow / Yellow (blend) / Green / Green (blend) / Cyan / Cyan (blend) / Sky / Sky (blend) / Blue / Blue (blend) / Violet / Violet (blend) / Pink / Pink (blend) / Purple / Purple (blend) / Black / Black (blend) / 25% Grey / 25% Grey (blend) / 50% Grey / 50% Grey (blend) / 75% Grey / 75% Grey (blend) |
| Show Layer 1 | Enabled ✅ / Disabled |
snes9x_layer_1 |
enabled / disabled |
| Show Layer 2 | Enabled ✅ / Disabled |
snes9x_layer_2 |
enabled / disabled |
| Show Layer 3 | Enabled ✅ / Disabled |
snes9x_layer_3 |
enabled / disabled |
| Show Layer 4 | Enabled ✅ / Disabled |
snes9x_layer_4 |
enabled / disabled |
| Show Sprite Layer | Enabled ✅ / Disabled |
snes9x_layer_5 |
enabled / disabled |
| Enable Graphic Clip Windows | Enabled ✅ / Disabled |
snes9x_gfx_clip |
enabled / disabled |
| Enable Transparency Effects | Enabled ✅ / Disabled |
snes9x_gfx_transp |
enabled / disabled |
| Enable Sound Channel 1 | Enabled ✅ / Disabled |
snes9x_sndchan_1 |
enabled / disabled |
| Enable Sound Channel 2 | Enabled ✅ / Disabled |
snes9x_sndchan_2 |
enabled / disabled |
| Enable Sound Channel 3 | Enabled ✅ / Disabled |
snes9x_sndchan_3 |
enabled / disabled |
| Enable Sound Channel 4 | Enabled ✅ / Disabled |
snes9x_sndchan_4 |
enabled / disabled |
| Enable Sound Channel 5 | Enabled ✅ / Disabled |
snes9x_sndchan_5 |
enabled / disabled |
| Enable Sound Channel 6 | Enabled ✅ / Disabled |
snes9x_sndchan_6 |
enabled / disabled |
| Enable Sound Channel 7 | Enabled ✅ / Disabled |
snes9x_sndchan_7 |
enabled / disabled |
| Enable Sound Channel 8 | Enabled ✅ / Disabled |
snes9x_sndchan_8 |
enabled / disabled |
¶ 
External links
- Source code used: https://github.com/libretro/snes9x/
- Libretro documentation: https://docs.libretro.com/library/snes9x/