 generally there are lots of keys that may or may not do things in the
various demos; we have adopted the traditional computer style standardisation
of keys ie. some keys always do the same thing but others do completely
different things in different demos or different keys do the same thing, as
consistency is too much of a shag to sort out.
 here's a summary of the keys though:

  press space to move from one demo to next if u r bored but most will move
on on their own

  hold down shift & press space to exit the demo at any point (and keep
shift held until it quits)

  when dodgy geeza has introduced 'chillout' hold down 'h' to try the
special version - it's much better but we've only ever seen it work on
simon's A5000, it mucks up on virtually everything else including seemingly
identical machines!

  use keypad 1,2,3 to control mindslide scroller's speed (useful to get to
the good bit)

  use  to speed up simon's scroller, shift and  do a stupid turbo scroll

  use  &  to toggle slower scrolling during the final rolling credits

 in general, h reveals hidden bits and x cuts things out - experiment to find
out more!