To run this game:

1) The graphics driver should be w/o bank switching (Pg.flat).
   A such driver is able to draw about 100 frames/sec (480x360x256) 
   on a P150. The bank switching driver with the same hardware
   is only able to draw about 16 frames/sec, which is really not 
   enought to play this game.
  
2) The best ticksize is [1-5]msec.

3) The bitmap function work only in 256 colors mode, sorry...

BUG:

After some time (one hour, more or less, it depends), for an
unknow reason, the system is only able to draw only 16 frames/sec
on my PC (it was able to draw 100). Even if exit Photon and re-enter,
it's the same. The only way is to shutdown Qnx...

TO DO:

- Kill the cannon (and the ship too) when a ship goes into the cannon...
- Many things...
