diff --git a/games/lemm/level1.s b/games/lemm/level1.s
index 3c1624fc..d6b3bd86 100644
--- a/games/lemm/level1.s
+++ b/games/lemm/level1.s
@@ -214,15 +214,7 @@ l1_door_is_open:
 
 	jsr	draw_flames
 
-	lda	TIMER_COUNT
-	cmp	#50
-	bcc	l1_timer_not_yet
-
-	jsr	update_time
-
-	lda	#$0
-	sta	TIMER_COUNT
-l1_timer_not_yet:
+	jsr	update_timer
 
 
 	; main drawing loop
@@ -255,6 +247,8 @@ l1_level_over:
 	rts
 
 
+.include "update_timer.s"
+
 .include "graphics/graphics_level1.inc"
 
 
diff --git a/games/lemm/level10.s b/games/lemm/level10.s
index 7678e8cf..e1b8e1fd 100644
--- a/games/lemm/level10.s
+++ b/games/lemm/level10.s
@@ -217,16 +217,7 @@ l10_door_is_open:
 
 	jsr	draw_flames
 
-	lda	TIMER_COUNT
-	cmp	#50
-	bcc	l10_timer_not_yet
-
-	jsr	update_time
-
-	lda	#$0
-	sta	TIMER_COUNT
-l10_timer_not_yet:
-
+	jsr	update_timer
 
 	; main drawing loop
 
@@ -257,6 +248,8 @@ l10_level_over:
 
 	rts
 
+.include "update_timer.s"
+
 .include "graphics/graphics_level10.inc"
 
 
diff --git a/games/lemm/level2.s b/games/lemm/level2.s
index 2686f5fb..e97a70e8 100644
--- a/games/lemm/level2.s
+++ b/games/lemm/level2.s
@@ -214,16 +214,7 @@ l2_door_is_open:
 
 	jsr	draw_flames
 
-	lda	TIMER_COUNT
-	cmp	#50
-	bcc	l2_timer_not_yet
-
-	jsr	update_time
-
-	lda	#$0
-	sta	TIMER_COUNT
-l2_timer_not_yet:
-
+	jsr	update_timer
 
 	; main drawing loop
 
@@ -257,6 +248,7 @@ l2_level_over:
 	rts
 
 
+.include "update_timer.s"
 
 .include "graphics/graphics_level2.inc"
 
diff --git a/games/lemm/level3.s b/games/lemm/level3.s
index 0a7a4b51..4019819d 100644
--- a/games/lemm/level3.s
+++ b/games/lemm/level3.s
@@ -214,16 +214,7 @@ l3_door_is_open:
 
 	jsr	draw_flames
 
-	lda	TIMER_COUNT
-	cmp	#50
-	bcc	l3_timer_not_yet
-
-	jsr	update_time
-
-	lda	#$0
-	sta	TIMER_COUNT
-l3_timer_not_yet:
-
+	jsr	update_timer
 
 	; main drawing loop
 
@@ -254,7 +245,7 @@ l3_level_over:
 
 	rts
 
-
+.include "update_timer.s"
 
 .include "graphics/graphics_level3.inc"
 
diff --git a/games/lemm/level4.s b/games/lemm/level4.s
index 17dac830..84e76008 100644
--- a/games/lemm/level4.s
+++ b/games/lemm/level4.s
@@ -215,15 +215,7 @@ l4_door_is_open:
 
 	jsr	draw_flames
 
-	lda	TIMER_COUNT
-	cmp	#50
-	bcc	l4_timer_not_yet
-
-	jsr	update_time
-
-	lda	#$0
-	sta	TIMER_COUNT
-l4_timer_not_yet:
+	jsr	update_timer
 
 
 	; main drawing loop
@@ -255,6 +247,7 @@ l4_level_over:
 
 	rts
 
+.include "update_timer.s"
 
 .include "graphics/graphics_level4.inc"
 
diff --git a/games/lemm/level5.s b/games/lemm/level5.s
index df7589ab..51b2d8ed 100644
--- a/games/lemm/level5.s
+++ b/games/lemm/level5.s
@@ -197,16 +197,7 @@ l5_door_is_open:
 
 ;	jsr	draw_flames
 
-	lda	TIMER_COUNT
-	cmp	#50
-	bcc	l5_timer_not_yet
-
-	jsr	update_time
-
-	lda	#$0
-	sta	TIMER_COUNT
-l5_timer_not_yet:
-
+	jsr	update_timer
 
 	; main drawing loop
 
@@ -241,6 +232,7 @@ l5_level_over:
 
 	rts
 
+.include "update_timer.s"
 
 
 .include "graphics/graphics_level5.inc"
diff --git a/games/lemm/level6.s b/games/lemm/level6.s
index f753140c..8fa2f1e1 100644
--- a/games/lemm/level6.s
+++ b/games/lemm/level6.s
@@ -182,7 +182,7 @@ do_level6:
 	; Main Loop
 	;===================
 	;===================
-l4_main_loop:
+l6_main_loop:
 
 	;=========================
 	; load next chunk of music
@@ -193,15 +193,15 @@ l4_main_loop:
 
 
 
-l4_no_load_chunk:
+l6_no_load_chunk:
 
 
 	lda	DOOR_OPEN
-	bne	l4_door_is_open
+	bne	l6_door_is_open
 
 	jsr	draw_door
 
-l4_door_is_open:
+l6_door_is_open:
 
 	;======================
 	; release lemmings
@@ -215,16 +215,7 @@ l4_door_is_open:
 
 	jsr	draw_flames
 
-	lda	TIMER_COUNT
-	cmp	#50
-	bcc	l4_timer_not_yet
-
-	jsr	update_time
-
-	lda	#$0
-	sta	TIMER_COUNT
-l4_timer_not_yet:
-
+	jsr	update_timer
 
 	; main drawing loop
 
@@ -246,15 +237,17 @@ l4_timer_not_yet:
 	inc	FRAMEL
 
 	lda	LEVEL_OVER
-	bne	l4_level_over
+	bne	l6_level_over
 
-	jmp	l4_main_loop
+	jmp	l6_main_loop
 
 
-l4_level_over:
+l6_level_over:
 
 	rts
 
+.include "update_timer.s"
+
 .include "graphics/graphics_level6.inc"
 
 
diff --git a/games/lemm/level7.s b/games/lemm/level7.s
index 27c36847..f80fd1ed 100644
--- a/games/lemm/level7.s
+++ b/games/lemm/level7.s
@@ -215,15 +215,7 @@ l7_door_is_open:
 
 	jsr	draw_flames
 
-	lda	TIMER_COUNT
-	cmp	#50
-	bcc	l7_timer_not_yet
-
-	jsr	update_time
-
-	lda	#$0
-	sta	TIMER_COUNT
-l7_timer_not_yet:
+	jsr	update_timer
 
 
 	; main drawing loop
@@ -255,6 +247,8 @@ l7_level_over:
 
 	rts
 
+.include "update_timer.s"
+
 .include "graphics/graphics_level7.inc"
 
 
diff --git a/games/lemm/level8.s b/games/lemm/level8.s
index 2feb9901..b9f9e197 100644
--- a/games/lemm/level8.s
+++ b/games/lemm/level8.s
@@ -217,16 +217,7 @@ l8_door_is_open:
 
 	jsr	draw_flames
 
-	lda	TIMER_COUNT
-	cmp	#50
-	bcc	l8_timer_not_yet
-
-	jsr	update_time
-
-	lda	#$0
-	sta	TIMER_COUNT
-l8_timer_not_yet:
-
+	jsr	update_timer
 
 	; main drawing loop
 
@@ -257,6 +248,8 @@ l8_level_over:
 
 	rts
 
+.include "update_timer.s"
+
 .include "graphics/graphics_level8.inc"
 
 
diff --git a/games/lemm/level9.s b/games/lemm/level9.s
index 4cc5b0ae..1ecddbdc 100644
--- a/games/lemm/level9.s
+++ b/games/lemm/level9.s
@@ -217,16 +217,7 @@ l9_door_is_open:
 
 	jsr	draw_flames
 
-	lda	TIMER_COUNT
-	cmp	#50
-	bcc	l9_timer_not_yet
-
-	jsr	update_time
-
-	lda	#$0
-	sta	TIMER_COUNT
-l9_timer_not_yet:
-
+	jsr	update_timer
 
 	; main drawing loop
 
@@ -257,6 +248,8 @@ l9_level_over:
 
 	rts
 
+.include "update_timer.s"
+
 .include "graphics/graphics_level9.inc"
 
 
diff --git a/games/lemm/update_timer.s b/games/lemm/update_timer.s
new file mode 100644
index 00000000..c580db85
--- /dev/null
+++ b/games/lemm/update_timer.s
@@ -0,0 +1,24 @@
+update_timer:
+	lda	SOUND_STATUS
+	and	#SOUND_MOCKINGBOARD
+	bne	timer_mockingboard
+
+	; if no mockingboard, then
+	; fake timer count so clocks tick
+
+	lda	TIMER_COUNT
+	clc
+	adc	#7
+	sta	TIMER_COUNT
+
+timer_mockingboard:
+	lda	TIMER_COUNT
+	cmp	#50
+	bcc	timer_not_yet
+
+	jsr	update_time
+
+	lda	#$0
+	sta	TIMER_COUNT
+timer_not_yet:
+	rts