diff --git a/src/mame/drivers/mirage.c b/src/mame/drivers/mirage.c
index a8ba8cbc092..285ec65ee37 100644
--- a/src/mame/drivers/mirage.c
+++ b/src/mame/drivers/mirage.c
@@ -213,16 +213,14 @@ static INPUT_PORTS_START( mirage )
     PORT_DIPNAME( 0x0004, 0x0004, DEF_STR( Unknown ) )
     PORT_DIPSETTING(      0x0004, DEF_STR( Off ) )
     PORT_DIPSETTING(      0x0000, DEF_STR( On ) )
-    PORT_DIPNAME( 0x0008, 0x0008, DEF_STR( Unknown ) )
-    PORT_DIPSETTING(      0x0008, DEF_STR( Off ) )
-    PORT_DIPSETTING(      0x0000, DEF_STR( On ) )
-	PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_VBLANK )
-    PORT_DIPNAME( 0x0020, 0x0020, DEF_STR( Unknown ) ) // eeprom read?
+	PORT_SERVICE( 0x0008, IP_ACTIVE_LOW )
+	PORT_BIT( 0x0010, IP_ACTIVE_HIGH, IPT_VBLANK )
+	PORT_DIPNAME( 0x0020, 0x0020, DEF_STR( Flip_Screen ) )
     PORT_DIPSETTING(      0x0020, DEF_STR( Off ) )
     PORT_DIPSETTING(      0x0000, DEF_STR( On ) )
     PORT_DIPNAME( 0x0040, 0x0040, DEF_STR( Unknown ) )
-    PORT_DIPSETTING(      0x0040, DEF_STR( Off ) )
-    PORT_DIPSETTING(      0x0000, DEF_STR( On ) )
+    PORT_DIPSETTING(      0x0000, DEF_STR( Off ) )
+    PORT_DIPSETTING(      0x0040, DEF_STR( On ) )
     PORT_DIPNAME( 0x0080, 0x0080, DEF_STR( Unknown ) )
     PORT_DIPSETTING(      0x0080, DEF_STR( Off ) )
     PORT_DIPSETTING(      0x0000, DEF_STR( On ) )
@@ -252,7 +250,7 @@ static INPUT_PORTS_START( mirage )
     PORT_DIPSETTING(      0x0000, DEF_STR( On ) )
 
 	PORT_START_TAG("MIRAGE0")
-    PORT_DIPNAME( 0x0001, 0x0001, "TEST?" )
+	PORT_BIT(  0x0001, IP_ACTIVE_LOW, IPT_SERVICE1 ) /* Inputs start here???? */
     PORT_DIPSETTING(      0x0001, DEF_STR( Off ) )
     PORT_DIPSETTING(      0x0000, DEF_STR( On ) )
     PORT_DIPNAME( 0x0002, 0x0002, DEF_STR( Unknown ) )
@@ -267,7 +265,7 @@ static INPUT_PORTS_START( mirage )
     PORT_DIPNAME( 0x0010, 0x0010, DEF_STR( Unknown ) )
     PORT_DIPSETTING(      0x0010, DEF_STR( Off ) )
     PORT_DIPSETTING(      0x0000, DEF_STR( On ) )
-    PORT_DIPNAME( 0x0020, 0x0020, DEF_STR( Unknown ) )
+    PORT_DIPNAME( 0x0020, 0x0020, DEF_STR( Unknown ) ) /* Makes selections in "Test Mode" when changing from "Off" to "On" */
     PORT_DIPSETTING(      0x0020, DEF_STR( Off ) )
     PORT_DIPSETTING(      0x0000, DEF_STR( On ) )
     PORT_DIPNAME( 0x0040, 0x0040, DEF_STR( Unknown ) )