diff --git a/src/mess/drivers/hunter2.c b/src/mess/drivers/hunter2.c
index ef7ed307adf..adc8f52b977 100644
--- a/src/mess/drivers/hunter2.c
+++ b/src/mess/drivers/hunter2.c
@@ -20,6 +20,9 @@ public:
 		, m_maincpu(*this, "maincpu")
 	{ }
 
+	DECLARE_DRIVER_INIT(hunter2);
+	DECLARE_WRITE8_MEMBER(porte0_w);
+
 private:
 	virtual void machine_reset();
 	required_device<cpu_device> m_maincpu;
@@ -27,12 +30,16 @@ private:
 
 static ADDRESS_MAP_START(hunter2_mem, AS_PROGRAM, 8, hunter2_state)
 	ADDRESS_MAP_UNMAP_HIGH
-	AM_RANGE(0x0000, 0x7fff) AM_ROM AM_REGION("roms", 0)
-	AM_RANGE(0x8000, 0xbfff) AM_RAM
+	AM_RANGE(0x0000, 0x3fff) AM_READ_BANK("bankr0") AM_WRITE_BANK("bankw0")
+	AM_RANGE(0x4000, 0x7fff) AM_READ_BANK("bankr1") AM_WRITE_BANK("bankw1")
+	AM_RANGE(0x8000, 0xbfff) AM_READ_BANK("bankr2") AM_WRITE_BANK("bankw2")
 	AM_RANGE(0xc000, 0xffff) AM_RAM
 ADDRESS_MAP_END
 
 static ADDRESS_MAP_START(hunter2_io, AS_IO, 8, hunter2_state)
+	ADDRESS_MAP_UNMAP_HIGH
+	ADDRESS_MAP_GLOBAL_MASK(0xff)
+	AM_RANGE(0xe0, 0xe0) AM_WRITE(porte0_w)
 ADDRESS_MAP_END
 
 
@@ -40,9 +47,68 @@ ADDRESS_MAP_END
 static INPUT_PORTS_START( hunter2 )
 INPUT_PORTS_END
 
+/*
+data   bank0    bank1    bank2
+00     00       01       02
+01     00       01       03
+02     00       01       04
+....
+09     00       01       11
+80     16       17       18
+....
+8F     61       62       63
+*/
+WRITE8_MEMBER( hunter2_state::porte0_w )
+{
+	if (data < 0x0a)
+	{
+		membank("bankr0")->set_entry(0);
+		membank("bankr1")->set_entry(0);
+		membank("bankr2")->set_entry(data);
+		membank("bankw0")->set_entry(0);
+		membank("bankw1")->set_entry(0);
+		membank("bankw2")->set_entry(0);
+	}
+	else
+	if ((data >= 0x80) && (data <= 0x8f))
+	{
+		data -= 0x70;
+		membank("bankr0")->set_entry(data);
+		membank("bankr1")->set_entry(data);
+		membank("bankr2")->set_entry(data);
+		membank("bankw0")->set_entry(data);
+		membank("bankw1")->set_entry(data);
+		membank("bankw2")->set_entry(data);
+	}
+}
 
 void hunter2_state::machine_reset()
 {
+	membank("bankr0")->set_entry(0);
+	membank("bankr1")->set_entry(0);
+	membank("bankr2")->set_entry(0);
+	membank("bankw0")->set_entry(0);
+	membank("bankw1")->set_entry(0);
+	membank("bankw2")->set_entry(0);
+}
+
+// it is presumed that writing to rom will go nowhere
+DRIVER_INIT_MEMBER( hunter2_state, hunter2 )
+{
+	UINT8 *rom = memregion("roms")->base();
+	UINT8 *ram = memregion("rams")->base();
+	membank("bankr0")->configure_entries( 0, 10, &rom[0x00000], 0x0000);
+	membank("bankr0")->configure_entries(16, 16, &ram[0x00000], 0xc000);
+	membank("bankr1")->configure_entries( 0, 10, &rom[0x04000], 0x0000);
+	membank("bankr1")->configure_entries(16, 16, &ram[0x04000], 0xc000);
+	membank("bankr2")->configure_entries( 0, 10, &rom[0x08000], 0x4000);
+	membank("bankr2")->configure_entries(16, 16, &ram[0x08000], 0xc000);
+	membank("bankw0")->configure_entries( 0, 10, &ram[0xc0000], 0x0000);
+	membank("bankw0")->configure_entries(16, 16, &ram[0x00000], 0xc000);
+	membank("bankw1")->configure_entries( 0, 10, &ram[0xc0000], 0x0000);
+	membank("bankw1")->configure_entries(16, 16, &ram[0x04000], 0xc000);
+	membank("bankw2")->configure_entries( 0, 10, &ram[0xc0000], 0x0000);
+	membank("bankw2")->configure_entries(16, 16, &ram[0x08000], 0xc000);
 }
 
 static MACHINE_CONFIG_START( hunter2, hunter2_state )
@@ -54,12 +120,15 @@ MACHINE_CONFIG_END
 
 /* ROM definition */
 ROM_START( hunter2 )
-	ROM_REGION(0x10000, "roms", 0)
+	ROM_REGION(0x30000, "roms", ROMREGION_ERASEFF) // board has space for 6 roms, but only 2 are populated normally
 	ROM_LOAD( "tr032kx8mrom0.ic50", 0x0000, 0x8000, CRC(694d252c) SHA1(b11dbf24faf648596d92b1823e25a8e4fb7f542c) )
 	ROM_LOAD( "tr032kx8mrom1.ic51", 0x8000, 0x8000, CRC(82901642) SHA1(d84f2bbd2e9e052bd161a313c240a67918f774ad) )
+
+	// 48 x 4k blocks plus 1 sinkhole
+	ROM_REGION(0xc4000, "rams", ROMREGION_ERASEVAL(0xa5)) // board can have up to 736k of ram, but 192k is standard
 ROM_END
 
 /* Driver */
 
-/*    YEAR  NAME     PARENT  COMPAT   MACHINE    INPUT    STATE         INIT  COMPANY    FULLNAME       FLAGS */
-COMP( 1981, hunter2, 0,      0,       hunter2,   hunter2, driver_device,  0,  "Husky", "Hunter 2", GAME_IS_SKELETON )
+/*    YEAR  NAME     PARENT  COMPAT   MACHINE    INPUT    STATE           INIT      COMPANY   FULLNAME       FLAGS */
+COMP( 1981, hunter2, 0,      0,       hunter2,   hunter2, hunter2_state,  hunter2,  "Husky", "Hunter 2", GAME_IS_SKELETON )