diff --git a/src/mame/drivers/galgame.c b/src/mame/drivers/galgame.c
index 809b545eed9..b7e636ce941 100644
--- a/src/mame/drivers/galgame.c
+++ b/src/mame/drivers/galgame.c
@@ -244,8 +244,9 @@ static INPUT_PORTS_START( galaxygame )
 	PORT_DIPNAME( 0x4000, 0x0000, "Sun" )
 	PORT_DIPSETTING(      0x0000, "Sun (& Gravity)" )
 	PORT_DIPSETTING(      0x4000, "No Sun (& No Gravity)" )
-	PORT_BIT( 0x2000, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_PLAYER(1)
-	PORT_BIT( 0x1000, IP_ACTIVE_HIGH, IPT_BUTTON2 ) PORT_PLAYER(1)
+	PORT_BIT( 0x2000, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_PLAYER(1) // fire
+	PORT_BIT( 0x1000, IP_ACTIVE_HIGH, IPT_BUTTON3 ) PORT_PLAYER(1) // hyper
+	PORT_BIT( 0x0800, IP_ACTIVE_HIGH, IPT_BUTTON2 ) PORT_PLAYER(1) // thrust
 	PORT_BIT( 0x0200, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_2WAY PORT_PLAYER(1)
 	PORT_BIT( 0x0100, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_2WAY PORT_PLAYER(1)
 
@@ -256,7 +257,8 @@ static INPUT_PORTS_START( galaxygame )
 	PORT_DIPSETTING(      0x0000, "Two Players" )
 	PORT_DIPSETTING(      0x0040, "One Player" )
 	PORT_BIT( 0x0020, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_PLAYER(2)
-	PORT_BIT( 0x0010, IP_ACTIVE_HIGH, IPT_BUTTON2 ) PORT_PLAYER(2)
+	PORT_BIT( 0x0010, IP_ACTIVE_HIGH, IPT_BUTTON3 ) PORT_PLAYER(2)
+	PORT_BIT( 0x0008, IP_ACTIVE_HIGH, IPT_BUTTON2 ) PORT_PLAYER(2)
 	PORT_BIT( 0x0002, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_2WAY PORT_PLAYER(2)
 	PORT_BIT( 0x0001, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_2WAY PORT_PLAYER(2)
 INPUT_PORTS_END