2020 POP : TEXT : VTAB 23: HTAB 4: PRINT "WOULD YOU LIKE TO PLAY AGAIN?";: POKE -16368,0: GET A$
2030 IF A$ = "N" THEN HOME : END
2040 GOTO 10
2999 REM ---QUADRANT CLEARED
3000 Q = Q +1
3010 VTAB 23: HTAB 8: PRINT "ADVANCING TO QUADRANT "Q;
3015 IF INT(Q/4) = Q/4 THEN TNE = 20604:SOUND = 17565: FOR Z1 = 200 TO 230: FOR Z2 = 1 TO 10: POKE TNE,255 -Z1: CALL SOUND: NEXT : NEXT :S = S +2: GOSUB 2000