diff --git a/src/mame/drivers/galaxold.c b/src/mame/drivers/galaxold.c
index b19ea73674c..ba45357e7ca 100644
--- a/src/mame/drivers/galaxold.c
+++ b/src/mame/drivers/galaxold.c
@@ -2017,6 +2017,13 @@ static INPUT_PORTS_START( luctoday )
    PORT_BIT( 0xf0, IP_ACTIVE_HIGH, IPT_UNUSED )
 INPUT_PORTS_END
 
+/* ckongg coinage DIPs are spread accross two input ports */
+static CUSTOM_INPUT( ckongg_coinage_r )
+{
+	int bit_mask = (FPTR)param;
+	return (input_port_read(field->port->machine, "FAKE") & bit_mask) ? 0x01 : 0x00;
+}
+
 static INPUT_PORTS_START( ckongg )
 	PORT_START("IN0")
 	PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_COIN1 )
@@ -2075,11 +2082,8 @@ static INPUT_PORTS_START( kkgalax )
 	PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_4WAY PORT_COCKTAIL
 	PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_COCKTAIL
 	PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN ) PORT_4WAY PORT_COCKTAIL
-	PORT_DIPNAME( 0xc0, 0x00, DEF_STR( Coinage ) )
-	PORT_DIPSETTING(    0x40, DEF_STR( 2C_1C ) )
-	PORT_DIPSETTING(    0x00, DEF_STR( 1C_1C ) )
-//  PORT_DIPSETTING(    0x80, DEF_STR( 2C_1C ) )
-	PORT_DIPSETTING(    0xc0, DEF_STR( Free_Play ) )
+	PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_SPECIAL ) PORT_CUSTOM(ckongg_coinage_r, (void *)0x01)
+	PORT_DIPUNKNOWN( 0x80, 0x80 )
 
 	PORT_START("DSW0")
 	PORT_DIPNAME( 0x03, 0x02, DEF_STR( Lives ) )
@@ -2087,13 +2091,18 @@ static INPUT_PORTS_START( kkgalax )
 	PORT_DIPSETTING(    0x01, "2" )
 	PORT_DIPSETTING(    0x02, "3" )
 	PORT_DIPSETTING(    0x03, "4" )
-	PORT_DIPNAME( 0x04, 0x00, DEF_STR( Unused ) )
-	PORT_DIPSETTING(    0x00, DEF_STR( Off ) )
-	PORT_DIPSETTING(    0x04, DEF_STR( On ) )
+	PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_SPECIAL ) PORT_CUSTOM(ckongg_coinage_r, (void *)0x02)
 	PORT_DIPNAME( 0x08, 0x08, DEF_STR( Bonus_Life ) )
 	PORT_DIPSETTING(    0x08, "500000" )
 	PORT_DIPSETTING(    0x00, "750000" )
 	PORT_BIT( 0xf0, IP_ACTIVE_HIGH, IPT_UNUSED )
+
+	PORT_START("FAKE")
+	PORT_DIPNAME( 0x03, 0x00, DEF_STR( Coinage ) )
+	PORT_DIPSETTING(    0x03, DEF_STR( 5C_1C ) )
+	PORT_DIPSETTING(    0x02, DEF_STR( 3C_1C ) )
+	PORT_DIPSETTING(    0x00, DEF_STR( 1C_2C ) )
+	PORT_DIPSETTING(    0x01, DEF_STR( 1C_4C ) )
 INPUT_PORTS_END
 
 static INPUT_PORTS_START( porter )