Wikipedia
Mednafen
My Emulator Doesn't Need A Frickin' Excellent Name (Mednafen), formerly known as Nintencer, is an OpenGL and SDL multi-system free software wrapper that bundles various third-party emulation cores into a single package, and is driven by command-line input. It is distributed under the terms of the GNU GPLv2. Certain emulation cores of Mednafen have been ported to RetroArch/Libretro.