The code of this game is released under the GNU Public License. Please note that graphics and sound are still copyrighted by The Bitmap Brothers. I am not a license expert, but I guess this means that we cannot modify and redistribute graphics and sound starting from these ones.

Also, I did not check whether GPL code is in some way not compatible with copyrighted artwork -- I just hope nobody gets upset about this. Eventually, all the graphics and sound should be replaced with new (free-as-speech) ones. Since I am a total lamer when it comes to graphics, volunteers to do this will be very welcome!