XMame

After:

emerge -av xmame

The following message:

* Remember, in order to play games, you have to
* be in the 'games' group.

* Just run 'gpasswd -a <USER> games'

* For more info about Gentoo gaming in general, see our website:
*    http://games.gentoo.org/

* Your available MAME binaries are: xmame
*  xmame.x11
*  xmame.SDL