Emulators

RetroArch has been released for PS2

The current stable is v1.7.6

- https://buildbot.libretro.com/stable/1.7.6/playstation/ps2/RetroArch_elf.7z

Nightly Builds:

- http://buildbot.libretro.com/nightly/playstation/ps2/latest/

The following systems are emulated via RetroArch 'cores'

• 2048
• Nintendo NES
• SEGA Genesis
• SEGA GameGear

Around 2002 a port of the popular Snes9x was released by Hiryu for PS2 called SNESStation

Source https://web.archive.org/web/20040821043154/http://snes-station.gamebase.ca/index.htm

This was more recently updated (2016) by SP193 at PSX-Place

https://www.psx-place.com/resources/super-nintendo-snesstation-0-2-4s.294/