Ruby Quiz wrote:

> I believe Florian Gross also used the arrow keys, but his solution doesn't seem
> to support my platform.  He used the Ruby/Gosu game library to build a graphical
> Sokoban.

It depends. Linux support is there in case you have Ruby compiled with 
pthread support. Details on how to get Ruby/Gosu working:

http://www.raschke.de/julian/gosu/docs/using-ruby.html

Sorry for all the trouble. I hope that this process will get easier in 
the future, though I can't directly influence this.