diff --git a/src/boards/484.c b/src/boards/484.c
new file mode 100644
index 0000000..857672b
--- /dev/null
+++ b/src/boards/484.c
@@ -0,0 +1,48 @@
+/* FCEUmm - NES/Famicom Emulator
+ *
+ * Copyright notice for this file:
+ *  Copyright (C) 2025 NewRisingSun
+ *
+ * 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
+ */
+
+#include "mapinc.h"
+#include "mmc3.h"
+
+static void PRGWrap(uint32 A, uint8 V) {
+	int prgAND =EXPREGS[0] &0x80? 0x1F: 0x3F;
+	int prgOR  =EXPREGS[0] <<5 &0x20;
+	setprg8(A, V &prgAND | prgOR &~prgAND);
+}
+
+static DECLFW(Write) {
+	if (~EXPREGS[0] &0x80) {
+		EXPREGS[0] =V;
+		FixMMC3PRG(MMC3_cmd);
+	}
+}
+
+static void Power(void) {
+	EXPREGS[0] =0;
+	GenMMC3Power();
+	SetWriteHandler(0x5000, 0x5FFF, Write);
+}
+
+void Mapper484_Init(CartInfo *info) {
+	GenMMC3_Init(info, 512, 256, info->iNES2? (info->PRGRamSize + info->PRGRamSaveSize) /1024: 8, info->battery);
+	pwrap = PRGWrap;
+	info->Power = Power;
+	AddExState(EXPREGS, 1, 0, "EXPR");
+}
diff --git a/src/ines.c b/src/ines.c
index db14133..a4ba12c 100644
--- a/src/ines.c
+++ b/src/ines.c
@@ -893,6 +893,7 @@ INES_BOARD_BEGIN()
 	INES_BOARD( "830947",	          	472, Mapper472_Init         )
 	INES_BOARD( "KJ01A-18",	          	473, Mapper473_Init         )
 	INES_BOARD( "045N",          		481, Mapper481_Init         )
+	INES_BOARD( "ESTIQUE",         		484, Mapper484_Init         )
 	INES_BOARD( "AVE NINA-08",    		487, Mapper487_Init         )
 	INES_BOARD( "Yhc-000",                  500, Mapper500_Init         )
 	INES_BOARD( "Yhc-001",                  501, Mapper501_Init         )
diff --git a/src/ines.h b/src/ines.h
index 3cbf80f..f9696c0 100644
--- a/src/ines.h
+++ b/src/ines.h
@@ -372,6 +372,7 @@ void INX_007T_Init(CartInfo* info); /* Mapper 470 */
 void Mapper472_Init(CartInfo *);
 void Mapper473_Init(CartInfo *);
 void Mapper481_Init(CartInfo *);
+void Mapper484_Init(CartInfo *);
 void Mapper487_Init(CartInfo *);
 void Mapper500_Init(CartInfo *);
 void Mapper501_Init(CartInfo *);