BallDroppings, ported to Java from Josh Nimoy's original C code. Port sponsored by Foundation for Creative Arts and Technology in Liverpool, England.
(Applet requires JSyn to be installed)
Instructions are at the original balldroppings website
All key controls explained on that page will work in the applet except for the telnet server, file IO, and Space only clears everything. There is no Ctrl+Space and Shift+Space for specifically clearing balls or lines.