RetroArch Snes9x 2005 Core: Scope, Supported Formats and Limitations

Snes9x 2005 is a Nintendo SNES / Famicom core for RetroArch. According to the official libretro documentation, it is a port of SNES9x 1.43 for libretro and was previously called CAT SFC. This article refreshes the existing English guide against that documentation and describes only what the source states.

What the Snes9x 2005 core is

The documentation describes the core as a port of SNES9x 1.43 for libretro, previously named CAT SFC. It belongs to a group of Snes9x cores that the documentation calls snapshots from the year their code is based on, alongside Snes9x 2002, Snes9x 2005 Plus and Snes9x 2010.

When the documentation says not to use this core

The documentation states that Snes9x 2005 provides more favorable performance thresholds at the cost of accuracy. It explicitly advises against using this core unless you have underpowered hardware and the mainline Snes9x core and the bsnes, higan or bsnes-mercury cores are not fast enough.

Supported ROM file extensions

The documentation lists the following ROM file extensions for this core: .smc, .fig, .sfc, .gd3, .gd7, .dx2, .bsx and .swc. All are marked as supported in the source.

Referenced libretro databases

The documentation links three libretro database files that apply to this core: Nintendo - Super Nintendo Entertainment System, Nintendo - Super Nintendo Entertainment System Hacks, and Nintendo - Sufami Turbo.

Prerequisites to confirm before choosing this core

• - The host hardware is underpowered.
• - The mainline Snes9x core is not fast enough on that hardware.
• - The bsnes, higan or bsnes-mercury cores are not fast enough on that hardware.

What this documentation summary does not cover

The collected official source excerpt does not include step-by-step installation instructions, control mappings, core option definitions or save behavior for Snes9x 2005. Those details are not described here because they are not present in the available source material.

Use this guide to understand the core's documented purpose and boundaries. For anything beyond that, consult the current official libretro documentation page directly.