   10 REM AUTOSTART
   20 PRINT CHR$(12)
   30 A=SCANKEY:REM DUMMY
   40 DO
   50 X=RND(0)*59:Y=RND(0)*17+2
   60 CURSOR X,Y
   70 COLOR RND(0)*7+1
   80 PRINT"*";
   90 X=RND(0)*59:Y=RND(0)*17+2
  100 CURSOR X,Y
  110 PRINT" ";
  120 X=RND(0)*59:Y=RND(0)*17+2
  130 CURSOR X,Y
  140 PRINT" ";
  150 LOOP UNTIL SCANKEY
