Free games!This must be a tough game to complete. The high score table shows some of the developer's scores the best of which is set at difficulty 70 and a speed of 56. The game documentation promises:
If you clean up a difficulty of 100 at a speed of 50 or better, send me a printed copy of "CLNFILE.DAT". I'll add you to the list of top players and send you a free disk of my latest games.