stepmania is a Dance-Dance-Revolution/Pump-it-up/In-the-groove
emulator.
Those three games are "classic" dancing games, with a pad where
you step on arrows.
The game comes with a few Songs, but more songs are available on
the Internet.
The current version of the port requires a running pulseaudio, e.g.,
something like
# ${RCDIR}/messagebus start
$ start-pulseaudio-x11
before starting stepmania.
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