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Nintendo - SNES / Famicom (Snes9x 2010)


Port of Snes9x 1.52+ to Libretro (previously called SNES9x Next). Rewritten in C and several optimizations and speedhacks.

Provides more favorable performance thresholds at the cost of accuracy. DO NOT use this core unless you have underpowered hardware and the mainline Snes9x core and the bsnes/higan/bsnes-mercury cores aren't fast enough

This core is part of a group of Snes9x cores that are snapshots from the year their code is based on. (Snes9x 2002, Snes9x 2005, Snes9x 2005 Plus, Snes9x 2010)


The Snes9x 2010 core has been authored by

  • Snes9x Team
  • Squarepusher

The Snes9x 2010 core is licensed under

A summary of the licenses behind RetroArch and its cores have found here.


Content that can be loaded by the Snes9x 2010 core have the following file extensions:

  • .smc
  • .fig
  • .sfc
  • .gd3
  • .gd7
  • .dx2
  • .bsx
  • .swc


RetroArch database(s) that are associated with the Snes9x 2010 core:


Frontend-level settings or features that the Snes9x 2010 core respects.

Feature Supported
Core Options
RetroArch Cheats
Native Cheats
Multi-Mouse -
Disk Control
Crop Overscan


The Snes9x 2010 core's internal core name is 'Snes9x 2010'

The Snes9x 2010 core saves/loads to/from these directories.

Frontend's Save directory

  • 'content-name'.srm (Cartridge battery save)

Frontend's State directory

  • 'content-name'.state# (State)

Geometry and timing

  • The Snes9x 2010 core's core provided FPS is 60.0988118623 for NTSC games and 50.0069789082 for PAL games
  • The Snes9x 2010 core's core provided sample rate is 32040.5 Hz
  • The Snes9x 2010 core's core provided aspect ratio is 4/3

Core options

The Snes9x 2010 core has the following option(s) that can be tweaked from the core options menu. The default setting is bolded.

Settings with (Restart) means that core has to be closed for the new setting to be applied on next launch.

  • SuperFX Overclock [snes9x_next_overclock] (Disabled(10MHz)|40MHz|60MHz|80MHz|100MHz|Underclock(5MHz)|Underclock(8MHz))

    Overclock or underclock the SuperFX chip. 10Mhz is stock clockspeed.

  • Reduce Slowdown (Hack, Unsafe) [snes9x_next_overclock_cycles] (disabled|compatible|max)

    Many games for the SNES suffered from slowdown due to the weak main CPU. This option helps allievate that at the cost of possible bugs.

    Example video here

    compatible: Reduce slowdown but keep as much game compatibility as much as possible.

    max: Reduce slowdown as much as possible but will break more games.

  • Reduce Flickering (Hack, Unsafe) [snes9x_next_reduce_sprite_flicker] (disabled|enabled)

    Raises sprite limit to reduce flickering in games.


The Snes9x 2010 core supports the following device type(s) in the controls menu, bolded device types are the default for the specified user(s):

User 1 device types

  • None - Doesn't disable input. There's no reason to switch to this.
  • SNES Joypad - Joypad
  • SNES Mouse - Mouse

User 2 device types

  • None - Doesn't disable input. There's no reason to switch to this.
  • SNES Joypad - Joypad
  • SNES Mouse - Mouse
  • Multitap - Joypad - Allows for up to five players to play together in multitap games.
  • SuperScope - Lightgun
  • Justifier - Lightgun
  • Justifiers - Lightgun - Two Justifiers are plugged in, for two-player Justifier games.

Multitap support

Activating multitap support in compatible games can be configured by switching to the Multitap device type for User 2.

Controller tables


User 1 - 5 Remap descriptors RetroPad Inputs
D-Pad Up
D-Pad Down
D-Pad Left
D-Pad Right


RetroMouse Inputs SNES Mouse
Mouse Cursor SNES Mouse Cursor
Mouse 1 SNES Mouse Left Button
Mouse 2 SNES Mouse Right Button


RetroLightgun Inputs SuperScope Justifier(s)
Gun Crosshair SuperScope Crosshair Justifier Crosshair
Gun Trigger SuperScope Trigger Justifier Trigger
Gun Aux A SuperScope Cursor
Gun Aux B SuperScope Turbo Justifier Offscreen
Gun Start SuperScope Pause Justifier Start


Game Issue
A.S.P. Air Strike Patrol The shadow below the aircraft is missing. Glitched graphics on the briefing screens.
Bass Masters Classic - Pro Edition Only shows a black screen.
Doom Colored dots appear during gameplay.
F-1 Grand Prix Glitched HUD display.
F1 ROC II – Race of Champions Crashes when starting a race.
Funaki Masakatsu Hybrid Wrestler – Tougi Denshou Corrupted graphics on the Pancrase logo screen.
Hayazashi Nidan Morita Shougi 2 Matches won’t start.
Madden NFL 96 Only shows a black screen.
Masters New – Harukanaru Augusta 3 Graphical corruption during gameplay.
Mecarobot Golf The ground "wobbles" during gameplay.
Mechwarrior 3050 Black screen after the Activision logo.
Secret of Evermore (PAL) Randomly freezes when the background music changes.
Sink or Swim Sometimes the levels are filled with water instantly.
Speedy Gonzales: Los Gatos Bandidos Freezes when pressing a switch in the last level.
Super Bomberman 3 Freezes after about 20 seconds in the Battle mode menu.
Super Bomberman 5 Title screen flickers if the opening cinematic isn’t skipped.

See also

Nintendo - Sufami Turbo

Nintendo - Super Nintendo Entertainment System (+ Hacks)