GXgnuboy
From GamecubeLinux Wiki
gnuboy (http://gnuboy.unix-fu.org/) was ported to GC-Linux using LibGX by Stonebone. The GX part is based of GXsnes9x by Scream|CT.
Source is available here: gnuboy-1.0.3-gx.tar.gz (http://www.itstud.chalmers.se/~larssten/gc-linux/gnuboy-1.0.3-gx.tar.gz)
Precompiled binaries here: gxgnuboy.tar.gz (http://www.itstud.chalmers.se/~larssten/gc-linux/gxgnuboy.tar.gz)
Run the binaries with the following command to get useful button mappings.
# gxgnuboy_static --source cube.rc romfile.gbc
The gxgnuboy_static is statically linked so that you do not need to have LibGX installed.

