diff --git a/src/mame/drivers/aleck64.c b/src/mame/drivers/aleck64.c
index 31593ed582f07..7a87b9b33b59d 100644
--- a/src/mame/drivers/aleck64.c
+++ b/src/mame/drivers/aleck64.c
@@ -367,6 +367,9 @@ static ADDRESS_MAP_START( rsp_map, AS_PROGRAM, 32, aleck64_state )
 ADDRESS_MAP_END
 
 static INPUT_PORTS_START( aleck64 )
+  PORT_START("input")
+  PORT_BIT( 0xff, 0x05, IPT_SPECIAL )
+
 	PORT_START("P1")
 	PORT_BIT( 0x8000, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_PLAYER(1)          // Button A
 	PORT_BIT( 0x4000, IP_ACTIVE_HIGH, IPT_BUTTON2 ) PORT_PLAYER(1)          // Button B
@@ -497,6 +500,8 @@ static INPUT_PORTS_START( 11beat )
 INPUT_PORTS_END
 
 static INPUT_PORTS_START( mtetrisc )
+  PORT_START("input")
+  PORT_BIT( 0xff, 0x05, IPT_SPECIAL )
 	// The basic N64 controls are unused in this game
 	PORT_START("P1")
 	PORT_START("P1_ANALOG_X")
@@ -534,6 +539,9 @@ static INPUT_PORTS_START( mtetrisc )
 INPUT_PORTS_END
 
 static INPUT_PORTS_START( starsldr )
+  PORT_START("input")
+  PORT_BIT( 0xff, 0x05, IPT_SPECIAL )
+
 	PORT_START("P1")
 	PORT_BIT( 0x8000, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_PLAYER(1)          // Button A
 	PORT_BIT( 0x4000, IP_ACTIVE_HIGH, IPT_BUTTON2 ) PORT_PLAYER(1)          // Button B
@@ -636,7 +644,10 @@ static INPUT_PORTS_START( starsldr )
 	PORT_BIT( 0x00040000, IP_ACTIVE_LOW, IPT_COIN1 )
 INPUT_PORTS_END
 
-	static INPUT_PORTS_START( doncdoon )
+static INPUT_PORTS_START( doncdoon )
+  PORT_START("input")
+  PORT_BIT( 0xff, 0x05, IPT_SPECIAL )
+
 	PORT_START("P1")
 	PORT_START("P1_ANALOG_X")
 	PORT_START("P1_ANALOG_Y")
@@ -685,6 +696,9 @@ static INPUT_PORTS_START( kurufev )
 INPUT_PORTS_END
 
 static INPUT_PORTS_START( twrshaft )
+  PORT_START("input")
+  PORT_BIT( 0xff, 0x05, IPT_SPECIAL )
+
 	PORT_START("P1")
 	PORT_START("P1_ANALOG_X")
 	PORT_START("P1_ANALOG_Y")
@@ -713,6 +727,9 @@ static INPUT_PORTS_START( twrshaft )
 INPUT_PORTS_END
 
 static INPUT_PORTS_START( hipai )
+  PORT_START("input")
+  PORT_BIT( 0xff, 0x05, IPT_SPECIAL )
+  
 	PORT_START("P1")
 	PORT_START("P1_ANALOG_X")
 	PORT_START("P1_ANALOG_Y")