diff --git a/src/mame/sega/megatech.cpp b/src/mame/sega/megatech.cpp
index 08f3686d644d1..f38b9cb53e187 100644
--- a/src/mame/sega/megatech.cpp
+++ b/src/mame/sega/megatech.cpp
@@ -216,12 +216,8 @@ static INPUT_PORTS_START( megatech ) /* Genesis Input Ports */
 	PORT_DIPNAME( 0x0008, 0x0008, DEF_STR( Unknown ) )
 	PORT_DIPSETTING(      0x0008, DEF_STR( Off ) )
 	PORT_DIPSETTING(      0x0000, DEF_STR( On ) )
-	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_DIPSETTING(      0x0020, DEF_STR( Off ) )
-	PORT_DIPSETTING(      0x0000, DEF_STR( On ) )
+	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_DOOR) PORT_NAME("Door 1") PORT_CODE(KEYCODE_W) PORT_TOGGLE
+	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_DOOR) PORT_NAME("Door 2") PORT_CODE(KEYCODE_E) PORT_TOGGLE
 	PORT_DIPNAME( 0x0040, 0x0040, DEF_STR( Unknown ) )
 	PORT_DIPSETTING(      0x0040, DEF_STR( Off ) )
 	PORT_DIPSETTING(      0x0000, DEF_STR( On ) )
@@ -232,19 +228,19 @@ static INPUT_PORTS_START( megatech ) /* Genesis Input Ports */
 	PORT_BIT(  0x02, IP_ACTIVE_LOW, IPT_COIN2 )
 	PORT_BIT(  0x04, IP_ACTIVE_LOW, IPT_COIN3 )
 	PORT_BIT(  0x08, IP_ACTIVE_LOW, IPT_COIN4 )
-	PORT_BIT(  0x10, IP_ACTIVE_LOW, IPT_SERVICE1 ) PORT_NAME("Service coin") PORT_CODE(KEYCODE_9)
+	PORT_BIT(  0x10, IP_ACTIVE_LOW, IPT_SERVICE1 ) PORT_NAME("Service Coin") PORT_CODE(KEYCODE_9)
 	PORT_BIT(  0x20, IP_ACTIVE_LOW, IPT_SERVICE3 ) PORT_NAME("Enter") PORT_CODE(KEYCODE_MINUS)
 	PORT_BIT(  0x40, IP_ACTIVE_LOW, IPT_START1 )
 	PORT_BIT(  0x80, IP_ACTIVE_LOW, IPT_START2 )
 
 	PORT_START("BIOS_DSW0")
-	PORT_DIPNAME( 0x02, 0x02, "Coin slot 3" )
+	PORT_DIPNAME( 0x02, 0x02, "Coin Slot 3" )
 	PORT_DIPSETTING(    0x00, "Inhibit" )
 	PORT_DIPSETTING(    0x02, "Accept" )
-	PORT_DIPNAME( 0x01, 0x01, "Coin slot 4" )
+	PORT_DIPNAME( 0x01, 0x01, "Coin Slot 4" )
 	PORT_DIPSETTING(    0x00, "Inhibit" )
 	PORT_DIPSETTING(    0x01, "Accept" )
-	PORT_DIPNAME( 0x1c, 0x1c, "Coin slot 3/4 value" )
+	PORT_DIPNAME( 0x1c, 0x1c, "Coin Slot 3/4 Value" )
 	PORT_DIPSETTING(    0x1c, DEF_STR( 1C_1C ) )
 	PORT_DIPSETTING(    0x18, DEF_STR( 1C_2C ) )
 	PORT_DIPSETTING(    0x14, DEF_STR( 1C_3C ) )
@@ -252,8 +248,8 @@ static INPUT_PORTS_START( megatech ) /* Genesis Input Ports */
 	PORT_DIPSETTING(    0x0c, DEF_STR( 1C_5C ) )
 	PORT_DIPSETTING(    0x08, DEF_STR( 1C_6C ) )
 	PORT_DIPSETTING(    0x04, DEF_STR( 1C_8C ) )
-	PORT_DIPSETTING(    0x00, "1 Coin/10 credits" )
-	PORT_DIPNAME( 0xe0, 0x60, "Coin slot 2 value" )
+	PORT_DIPSETTING(    0x00, "1 Coin/10 Credits" )
+	PORT_DIPNAME( 0xe0, 0x60, "Coin Slot 2 Value" )
 	PORT_DIPSETTING(    0x20, DEF_STR( 2C_1C ) )
 	PORT_DIPSETTING(    0x40, DEF_STR( 1C_1C ) )
 	PORT_DIPSETTING(    0x60, DEF_STR( 1C_2C ) )
@@ -264,7 +260,7 @@ static INPUT_PORTS_START( megatech ) /* Genesis Input Ports */
 	PORT_DIPSETTING(    0x00, "Inhibit" )
 
 	PORT_START("BIOS_DSW1")
-	PORT_DIPNAME( 0x0f, 0x01, "Coin Slot 1 value" )
+	PORT_DIPNAME( 0x0f, 0x01, "Coin Slot 1 Value" )
 	PORT_DIPSETTING(    0x00, "Inhibit" )
 	PORT_DIPSETTING(    0x01, DEF_STR( 1C_1C ) )
 	PORT_DIPSETTING(    0x02, DEF_STR( 1C_2C ) )
@@ -275,13 +271,13 @@ static INPUT_PORTS_START( megatech ) /* Genesis Input Ports */
 	PORT_DIPSETTING(    0x07, DEF_STR( 1C_7C ) )
 	PORT_DIPSETTING(    0x08, DEF_STR( 1C_8C ) )
 	PORT_DIPSETTING(    0x09, DEF_STR( 1C_9C ) )
-	PORT_DIPSETTING(    0x0a, "1 coin/10 credits" )
-	PORT_DIPSETTING(    0x0b, "1 coin/11 credits" )
-	PORT_DIPSETTING(    0x0c, "1 coin/12 credits" )
-	PORT_DIPSETTING(    0x0d, "1 coin/13 credits" )
-	PORT_DIPSETTING(    0x0e, "1 coin/14 credits" )
-	PORT_DIPSETTING(    0x0f, "1 coin/15 credits" )
-	PORT_DIPNAME( 0xf0, 0xa0, "Time per credit" )
+	PORT_DIPSETTING(    0x0a, DEF_STR( 1C_10C ) )
+	PORT_DIPSETTING(    0x0b, "1 Coin/11 Credits" )
+	PORT_DIPSETTING(    0x0c, "1 Coin/12 Credits" )
+	PORT_DIPSETTING(    0x0d, "1 Coin/13 Credits" )
+	PORT_DIPSETTING(    0x0e, "1 Coin/14 Credits" )
+	PORT_DIPSETTING(    0x0f, "1 Coin/15 Credits" )
+	PORT_DIPNAME( 0xf0, 0xa0, "Time Per Credit" )
 	PORT_DIPSETTING(    0x00, DEF_STR( Free_Play ) )
 	PORT_DIPSETTING(    0x10, "7:30" )
 	PORT_DIPSETTING(    0x20, "7:00" )