SCREEN 9 PRINT "This is squary!" SLEEP 3 xa = 310 ya = 160 xb = 310 yb = 160 x = 1 CLS 20 IF n = 1 THEN clr = 10 IF n = 2 THEN clr = 9 IF n = 3 THEN clr = 12 IF n = 4 THEN clr = 14 30 LINE (xa, ya)-(xb, yb), clr, B IF xa < 0 AND xb > 640 THEN GOTO 40 xa = xa - 2 ya = ya - 2 xb = xb + 2 yb = yb + 2 IF n >= 4 THEN n = 1 IF n < 4 THEN n = n + 1 GOTO 20 40 DO LOOP WHILE INKEY$ = ""