diff --git a/build/buildtools/commondefs.sysmenu b/build/buildtools/commondefs.sysmenu
index e060ccb1..b838c2fc 100644
--- a/build/buildtools/commondefs.sysmenu
+++ b/build/buildtools/commondefs.sysmenu
@@ -18,6 +18,9 @@
 ifndef TWL_SYSMENU_COMMONDEFS_
 TWL_SYSMENU_COMMONDEFS_ = TRUE
 
+#SYSMENU_DISABLE_TWL_BOOT = TRUE
+#SYSMENU_DISABLE_RETAIL_BOOT = TRUE
+
 NITRO_NO_STD_PCHDR = TRUE # プリコンパイルヘッダ抑止
 
 EMPTY	 	?=
@@ -111,6 +114,16 @@ SYSMENU_INSTALL_LIBDIR			:= $(SYSMENU_INSTALL_ROOT)/lib/$(TWL_LIBTYPE)
 SYSMENU_INSTALL_COMPONENTSDIR	:= $(SYSMENU_INSTALL_ROOT)/components
 SDK_NMENU_DATADIR				=  $(ROOT)/build/tools/TwlNMenu/data
 
+#----------------------------------------------------------------------------
+
+ifdef SYSMENU_DISABLE_TWL_BOOT
+MACRO_FLAGS	+= -DSYSMENU_DISABLE_TWL_BOOT=$(SYSMENU_DISABLE_TWL_BOOT)
+endif
+
+ifdef SYSMENU_DISABLE_RETAIL_BOOT
+MACRO_FLAGS	+= -DSYSMENU_DISABLE_RETAIL_BOOT=$(SYSMENU_DISABLE_RETAIL_BOOT)
+endif
+
 #----------------------------------------------------------------------------
 endif	# TWL_SYSMENU_COMMONDEFS_
 #----- End of commondefs -----
diff --git a/build/libraries_sysmenu/boot/ARM7/src/bootAPI.c b/build/libraries_sysmenu/boot/ARM7/src/bootAPI.c
index a5804ff1..bdc028a6 100644
--- a/build/libraries_sysmenu/boot/ARM7/src/bootAPI.c
+++ b/build/libraries_sysmenu/boot/ARM7/src/bootAPI.c
@@ -177,6 +177,11 @@ BOOL BOOT_WaitStart( void )
 			if ( dh->s.platform_code )
 			{
 //				target = REBOOT_TARGET_TWL_APP;
+#ifdef SYSMENU_DISABLE_TWL_BOOT
+                while (1)
+                {
+                }
+#endif // SYSMENU_DISABLE_TWL_BOOT
 			}
 			else
 			{
@@ -199,13 +204,13 @@ BOOL BOOT_WaitStart( void )
 								  REG_SND_SMX_CNT_E_MASK;
             }
 
-#ifdef FIRM_USE_TWLSDK_KEYS
+#if defined(FIRM_USE_TWLSDK_KEYS) || defined(SYSMENU_DISABLE_RETAIL_BOOT)
             // TwlSDK内の鍵を使っている時は製品用CPUではTWLアプリはブートしない
             if ( ! (*(u8*)HWi_WSYS08_ADDR & HWi_WSYS08_OP_OPT_MASK) && !ds )
             {
                 OS_Terminate();
             }
-#endif // FIRM_USE_SDK_KEYS
+#endif // FIRM_USE_SDK_KEYS || SYSMENU_DISABLE_RETAIL_BOOT
 			
 			// リブート
 			OS_Boot( dh->s.sub_entry_address, mem_list, target );
diff --git a/build/libraries_sysmenu/boot/ARM9/src/bootAPI.c b/build/libraries_sysmenu/boot/ARM9/src/bootAPI.c
index 3a48604b..8779cfb1 100644
--- a/build/libraries_sysmenu/boot/ARM9/src/bootAPI.c
+++ b/build/libraries_sysmenu/boot/ARM9/src/bootAPI.c
@@ -127,6 +127,9 @@ void BOOT_Ready( void )
 		if ( dh->s.platform_code )
 		{
 //			target = REBOOT_TARGET_TWL_APP;
+#ifdef SYSMENU_DISABLE_TWL_BOOT
+            OS_Terminate();
+#endif // SYSMENU_DISABLE_TWL_BOOT
 		}
 		else
 		{
@@ -138,13 +141,13 @@ void BOOT_Ready( void )
             ds = TRUE;
         }
 
-#ifdef FIRM_USE_TWLSDK_KEYS
+#if defined(FIRM_USE_TWLSDK_KEYS) || defined(SYSMENU_DISABLE_RETAIL_BOOT)
         // TwlSDK内の鍵を使っている時は製品用CPUではTWLアプリはブートしない
         if ( ! (*(u8*)OS_CHIPTYPE_DEBUGGER_ADDR & OS_CHIPTYPE_DEBUGGER_MASK) && !ds )
         {
             OS_Terminate();
         }
-#endif // FIRM_USE_SDK_KEYS
+#endif // FIRM_USE_SDK_KEYS || SYSMENU_DISABLE_RETAIL_BOOT
 		
 		// 起動するターゲットの種類を指定する必要あり
 		OS_Boot( dh->s.main_entry_address, mem_list, target );