diff --git a/src/boards/224.c b/src/boards/224.c
new file mode 100644
index 0000000..8fd7a19
--- /dev/null
+++ b/src/boards/224.c
@@ -0,0 +1,50 @@
+/* FCEUmm - NES/Famicom Emulator
+ *
+ * Copyright notice for this file:
+ *  Copyright (C) 2019 Libretro Team
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+/* 2019-05-29 - Mapper 224, KT-008
+ * iNES Mapper 224 is used for the 晶科泰 (Jncota) KT-008 PCB.
+ * It's an MMC3 clone that supports 1024 KiB of PRG-ROM through an additional
+ * outer bank register at $5000.
+ * http://wiki.nesdev.com/w/index.php/INES_Mapper_224 */
+
+#include "mapinc.h"
+#include "mmc3.h"
+
+static void M224PW(uint32 A, uint8 V) {
+	setprg8(A, V & 0x3f | (EXPREGS[0] << 4) & 0x40);
+}
+
+static DECLFW(Mapper224Write) {
+	EXPREGS[0] = V;
+	FixMMC3PRG(MMC3_cmd);
+}
+
+static void M224Power(void) {
+	EXPREGS[0] = 0;
+	GenMMC3Power();
+	SetWriteHandler(0x5000, 0x5000, Mapper224Write);
+}
+
+void Mapper224_Init(CartInfo *info) {
+	GenMMC3_Init(info, 1024, 0, 8, 0);
+	pwrap = M224PW;
+	info->Power = M224Power;
+	AddExState(EXPREGS, 1, 0, "EXPR");
+}
diff --git a/src/ines-correct.h b/src/ines-correct.h
index 3c0a31a..77c041f 100644
--- a/src/ines-correct.h
+++ b/src/ines-correct.h
@@ -318,6 +318,12 @@
 	{0x345ee51a,	245,	   -1},	/* DQ4c */
 	{0x57514c6c,	245,	   -1},	/* Yong Zhe Dou E Long - Dragon Quest VI (Ch) */
 	{0xdb9d71b7,    114,       -1}, /* Super Donkey Kong (Unl) [o1] */
+
+	{0x61fc4d20,    224,        0}, /* Pokemon HeartGold (KT-008 PCB)(Ch)[!] */
+	{0x4d735cb1,    224,        0}, /* Pokemon Platinum (KT-008 PCB)(Ch)[!] */
+	{0x4f427110,    224,        0}, /* Pokemon Platinum Alt title 1 (KT-008 PCB)(Ch)[!] */
+	{0xe001de16,    224,        0}, /* Pokemon Platinum Alt title 2 (KT-008 PCB)(Ch)[!] */
+
 	{0x00000000,	  -1,	   -1}
 
 #endif
diff --git a/src/ines.c b/src/ines.c
index acec60f..ee468e6 100644
--- a/src/ines.c
+++ b/src/ines.c
@@ -613,7 +613,7 @@ static BMAPPINGLocal bmap[] = {
 	{(uint8_t*)"UNLN625092",			221, UNLN625092_Init},
 	{(uint8_t*)"",					222, Mapper222_Init},
 /*	{(uint8_t*)"",					223, Mapper223_Init}, */
-/*	{(uint8_t*)"",					224, Mapper224_Init}, */
+	{(uint8_t*)"KT-008",				224, Mapper224_Init},
 	{(uint8_t*)"",					225, Mapper225_Init},
 	{(uint8_t*)"BMC 22+20-in-1",		226, Mapper226_Init},
 	{(uint8_t*)"",					227, Mapper227_Init},
diff --git a/src/ines.h b/src/ines.h
index 61402c2..3e44574 100644
--- a/src/ines.h
+++ b/src/ines.h
@@ -201,6 +201,7 @@ void Mapper216_Init(CartInfo *);
 void Mapper217_Init(CartInfo *);
 void Mapper220_Init(CartInfo *);
 void Mapper222_Init(CartInfo *);
+void Mapper224_Init(CartInfo *);
 void Mapper225_Init(CartInfo *);
 void Mapper226_Init(CartInfo *);
 void Mapper227_Init(CartInfo *);