diff --git a/ChangeLog b/ChangeLog
index 8850fc8..4e516b8 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+v2.3:
+- add support for New Super Mario Bros. 4
+- fixed building JPN version of NewerHoliday
+
 v2.2:
 - change ID for Koopa Country to SMN?10
 - fix handling .rar files for riivolution patches
diff --git a/GAMEIDS b/GAMEIDS
index 536c1c8..b1738b8 100644
--- a/GAMEIDS
+++ b/GAMEIDS
@@ -10,3 +10,4 @@ SMN?07		Newer Holiday Special
 SMN?08		Epic Super Bowser World
 SMN?09		?
 SMN?10		Koopa Country
+SMN?11		New Super Mario Bros. 4
diff --git a/README b/README
index 1ff6d10..733628f 100644
--- a/README
+++ b/README
@@ -20,7 +20,8 @@ Supported Games
 * Newer Summer Sun (riivolution) [SMN?06]
 * Newer Holiday Special (riivolution) [SMN?07]
 * Epic Super Bower World (riivolution) [SMN?08]
-* Koopa Country (riivolution) [SMN?09]
+* Koopa Country (riivolution) [SMN?10]
+* New Super Mario Bros. 4 (riivolution) [SMN?11]
 * The Legend of Zelda: Parallel Worlds (ips)
 
 Default Searchpaths:
diff --git a/patches/05-04.arc b/patches/05-04.arc
new file mode 100644
index 0000000..9d2e238
Binary files /dev/null and b/patches/05-04.arc differ
diff --git a/patchimage.sh b/patchimage.sh
index b3d52a1..a6b3e5a 100755
--- a/patchimage.sh
+++ b/patchimage.sh
@@ -45,6 +45,10 @@ case ${GAME} in
 		source script.d/koopacountry.sh
 	;;
 
+	h | H | NSMB4 | "New Super Mario Bros. 4" )
+		source script.d/nsmbw4.sh
+	;;
+
 	1 | ParallelWorlds | "The Legend of Zelda: Parallel Worlds" )
 		source script.d/parallelworlds.sh
 	;;
diff --git a/script.d/common.sh b/script.d/common.sh
index a5d51a1..dbf5b72 100644
--- a/script.d/common.sh
+++ b/script.d/common.sh
@@ -3,7 +3,8 @@
 TMD_OPTS="--tt-id=K"
 TMP_FILES=(Another nsmb.d XmasNewer NewerFiles "Newer*Summer*Sun" \
 ZPW_1.1.ips Epic_Super_Bowser_World_v1.00 Riivolution Koopa \
-Cannon_Super_Mario_Bros._Wii_v1.1 riivolution "Readme*" "*.txt" "*.rtf" )
+Cannon_Super_Mario_Bros._Wii_v1.1 riivolution "Readme*" "*.txt" "*.rtf" \
+"*.dol" "*.elf" nsmb)
 
 setup_tools () {
 
@@ -27,10 +28,6 @@ cleanup () {
 
 ask_game () {
 
-# ####
-# E: preserved for Canon SMBW
-# ###
-
 echo -e \
 "************************************************
 patchimage.sh
@@ -43,8 +40,9 @@ D	Newer: Holiday Special
 E	Cannon Super Mario Bros.
 F	Epic Super Bowser World
 G	Koopa Country
+H	New Super Mario Bros. 4
 
- 1	The Legend of Zelda: Parallel Worlds
+1	The Legend of Zelda: Parallel Worlds
 "
 
 read GAME
diff --git a/script.d/nsmbw4.sh b/script.d/nsmbw4.sh
new file mode 100644
index 0000000..e3fdc15
--- /dev/null
+++ b/script.d/nsmbw4.sh
@@ -0,0 +1,100 @@
+#!/bin/bash
+
+WORKDIR=nsmb.d
+DOL=${WORKDIR}/sys/main.dol
+DOWNLOAD_LINK="http://nanolx.org/riivolution/New%20Super%20Mario%20Bros.%20Wii%204%20made%20by%20Orange-Yoshi3.3.zip"
+RIIVOLUTION_ZIP="New Super Mario Bros. Wii 4 made by Orange-Yoshi3.3.zip"
+RIIVOLUTION_DIR="nsmb"
+GAMENAME="New Super Mario Bros. 4"
+GAME_TYPE=RIIVOLUTION
+BANNER_LOCATION=${WORKDIR}/files/opening.bnr
+
+show_notes () {
+
+echo -e \
+"************************************************
+${GAMENAME}
+
+This hack includes 16 new levels in 4 worlds (1, 5, 8 & 9) as well as a
+new titlescreen with logo (made by max31) and custom music.
+
+Source:			http://www.rvlution.net/forums/viewtopic.php?f=53&t=1501
+Base Image:		New Super Mario Bros. Wii (SMN?01)
+Supported Versions:	EURv1, EURv2, USAv1, USAv2, JPNv1
+************************************************"
+
+}
+
+check_input_image_special () {
+
+	if [[ ! ${IMAGE} ]]; then
+		if test -f SMN?01.wbfs; then
+			IMAGE=SMN?01.wbfs
+		elif test -f SMN?01.iso; then
+			IMAGE=SMN?01.iso
+		else
+			echo -e "please specify image to use with --iso=<path>"
+			exit 1
+		fi
+	fi
+
+}
+
+detect_game_version () {
+
+
+	if [[ -f ${WORKDIR}/files/COPYDATE_LAST_2009-10-03_232911 ]]; then
+		VERSION=EURv1
+		REG_LETTER=P
+	elif [[ -f ${WORKDIR}/files/COPYDATE_LAST_2010-01-05_152101 ]]; then
+		VERSION=EURv2
+		REG_LETTER=P
+	elif [[ -f ${WORKDIR}/files/COPYDATE_LAST_2009-10-03_232303 ]]; then
+		VERSION=USAv1
+		REG_LETTER=E
+	elif [[ -f ${WORKDIR}/files/COPYDATE_LAST_2010-01-05_143554 ]]; then
+		VERSION=USAv2
+		REG_LETTER=E
+	elif [[ -f ${WORKDIR}/files/COPYDATE_LAST_2009-10-03_231655 ]]; then
+		VERSION=JPNv1
+		REG_LETTER=J
+	elif [[ ! ${VERSION} ]]; then
+		echo -e "please specify your games version using --version={EURv1,EURv2,USAv1,USAv2,JPNv1}"
+		exit 1
+	fi
+
+	GAMEID=SMN${REG_LETTER}11
+
+}
+
+place_files () {
+
+	case ${VERSION} in
+		EURv* )
+			cp "${RIIVOLUTION_DIR}"/openingTitle.arc ${WORKDIR}/files/EU/Layout/openingTitle/
+		;;
+
+		USAv* )
+			cp "${RIIVOLUTION_DIR}"/openingTitle.arc ${WORKDIR}/files/US/Layout/openingTitle/
+		;;
+
+		JPNv* )
+			cp "${RIIVOLUTION_DIR}"/openingTitle.arc ${WORKDIR}/files/JP/Layout/openingTitle/
+		;;
+	esac
+
+	cp "${RIIVOLUTION_DIR}"/*.brstm ${WORKDIR}/files/Sound/stream/
+	cp "${RIIVOLUTION_DIR}"/0*.arc ${WORKDIR}/files/Stage/
+	cp "${RIIVOLUTION_DIR}"/*.brsar ${WORKDIR}/files/Sound/
+	cp "${RIIVOLUTION_DIR}"/bgA*.arc ${WORKDIR}/files/Object/
+	# fix
+	cp patches/05-04.arc ${WORKDIR}/files/Stage/
+
+
+}
+
+dolpatch () {
+
+	${WIT} dolpatch ${DOL} xml="patches/NSMBW_AP.xml" -q
+
+}