diff --git a/BIN/SEQ.S.txt b/BIN/SEQ.S.txt
index 8e2f2235..4b9c0be7 100644
--- a/BIN/SEQ.S.txt
+++ b/BIN/SEQ.S.txt
@@ -47,6 +47,7 @@ wFirst          .BS 2                   ; arg variable - starting count
 wIncr           .BS 2                   ; arg variable - increment
 wLast           .BS 2                   ; arg variable - ending count
 bFormat         .BS 1                   ; flag that the format -f option was specified
+bHelp           .BS 1                   ; flag that the help -h option was specified
 ZPPtrFormat     .BS 2                   ; pointer to format -f string
 bString         .BS 1                   ; flag that the string -s option was specified
 ZPPtrString     .BS 2                   ; pointer to string -s string
@@ -116,10 +117,13 @@ CS.RUN
 .10             >STYA ZPPtr1            ; ArgV pointer was in Y,A so stick into ZPPtr1
                 lda (ZPPtr1)
                 cmp #'-'                ; does arg have a hyphen?
-                bne .11                 ; if not, check for string args
+                bne .11                 ; if not, check for string/numeric args
 
                 jsr CS.RUN.CheckOpt     ; if it had a hyphen, check and set arg if recognized
-                bcc .1                  ; if we recognized the arg, then loop again to check next
+                bcs .9                  ; if we didn't recognize the arg, go to usage and exit
+                bit bHelp               ; was the arg 'Help'?
+                bpl .1                  ; no, loop again to check next
+                jmp .9                  ; it was, so display usage and exit
 
 
 *--- Checking of argument -F ----------
@@ -144,7 +148,7 @@ CS.RUN
 
 *--- Checking of argument -T ----------
 .13             bit bTerminating        ; did we just see the -t option?
-                bpl .2                  ; no, jump to the next arg flag
+                bpl .2                  ; no, jump to numeric processing
                 lda ArgIndex            ; yes, then get the pointer to the arg string
                 >SYSCALL ArgV           ; and set it to the pointer for the -t
                 >STYA ZPPtrTerm         ; string storage
@@ -153,6 +157,21 @@ CS.RUN
                 jmp .1                  ; and then go process the next arg
 
 
+*--- Display usage and error out ------
+.9
+                >PUSHW L.MSG.USAGE      ; push address for usage text
+                >PUSHBI 0
+                >SYSCALL PrintF         ; print usage message
+                lda #E.SYN              ; set OS return code as Syntax Error
+                sec                     ; indicate we don't want CS.RUN called again
+                rts                     ; return to OS
+
+*--- Successful exit ------------------
+.99
+                lda #0                  ; set OS return code to success
+                sec                     ; indicate we don't want CS.RUN called again
+                rts                     ; return to OS
+
 *--- Processing numerical args --------
 .2              lda ArgIndex
                 >SYSCALL ArgV           ; check for an arg at index in A
@@ -389,18 +408,18 @@ CS.CmpFirstLast >PUSHW wFirst           ; using FPU macro, so push first,
 *--------------------------------------
 CS.END
 *--------------------------------------
-MSG.USAGE       .CS "Usage : SEQ [first [incr]] last\r\n"
-                .CS "   -F numeric format\r\n"
-                .CS "   -S string separator\r\n"
-                .CZ "   -T terminating string\r\n"
+MSG.USAGE       .CS "Usage : SEQ [options] [first [incr]] last\r\n"
+                .CS "   -F fmt : numeric format\r\n"
+                .CS "   -S sep : string separator\r\n"
+                .CZ "   -T trm : terminating string\r\n"
 MSG.MSG.NEWLINE .CZ "\r\n"
 *--------------------------------------
 FMT.FORMAT      .AZ "%I"
 FMT.STRING      .AZ "\r\n"
 FMT.TERM        .AZ ""
 *--------------------------------------
-OptionList      .AS "FfSsTt"
-OptionVars      .DA #bFormat,#bFormat,#bString,#bString,#bTerminating,#bTerminating
+OptionList      .AS "FfSsTtHh"
+OptionVars      .DA #bFormat,#bFormat,#bString,#bString,#bTerminating,#bTerminating,#bHelp,#bHelp
 *--------------------------------------
 * Per Process DATA segment (0 filled before INIT)
 *--------------------------------------