diff --git a/src/mame/drivers/cgang.cpp b/src/mame/drivers/cgang.cpp
index b9461c56a62..2c92c1d111d 100644
--- a/src/mame/drivers/cgang.cpp
+++ b/src/mame/drivers/cgang.cpp
@@ -116,7 +116,7 @@ public:
 		m_cg_count(*this, "cg_count%u", 0U)
 	{ }
 
-	// machine drivers
+	// machine configs
 	void cgang(machine_config &config);
 
 protected:
diff --git a/src/mame/drivers/kungfur.cpp b/src/mame/drivers/kungfur.cpp
index a61beae96c1..d747812eb9f 100644
--- a/src/mame/drivers/kungfur.cpp
+++ b/src/mame/drivers/kungfur.cpp
@@ -86,7 +86,7 @@ public:
 		m_lamps(*this, "lamp%u", 0U)
 	{ }
 
-	// machine drivers
+	// machine configs
 	void kungfur(machine_config &config);
 
 protected:
diff --git a/src/mame/layout/kungfur.lay b/src/mame/layout/kungfur.lay
index a47f0d15a88..46ce05501c2 100644
--- a/src/mame/layout/kungfur.lay
+++ b/src/mame/layout/kungfur.lay
@@ -27,11 +27,17 @@
 <!-- define level lamps -->
 
 	<element name="level1" defstate="0">
+		<disk>
+			<color red="0" green="0" blue="0" />
+			<bounds x="-0.075" y="-0.075" width="1.15" height="1.15" />
+		</disk>
 		<disk state="1">
 			<color red="1.0" green="0.1" blue="0.15" />
+			<bounds x="0" y="0" width="1" height="1" />
 		</disk>
 		<disk state="0">
 			<color red="0.2" green="0.02" blue="0.03" />
+			<bounds x="0" y="0" width="1" height="1" />
 		</disk>
 		<text string="1">
 			<color red="0.0" green="0.0" blue="0.0" />
@@ -39,11 +45,17 @@
 		</text>
 	</element>
 	<element name="level2" defstate="0">
+		<disk>
+			<color red="0" green="0" blue="0" />
+			<bounds x="-0.075" y="-0.075" width="1.15" height="1.15" />
+		</disk>
 		<disk state="1">
 			<color red="1.0" green="0.1" blue="0.15" />
+			<bounds x="0" y="0" width="1" height="1" />
 		</disk>
 		<disk state="0">
 			<color red="0.2" green="0.02" blue="0.03" />
+			<bounds x="0" y="0" width="1" height="1" />
 		</disk>
 		<text string="2">
 			<color red="0.0" green="0.0" blue="0.0" />
@@ -51,11 +63,17 @@
 		</text>
 	</element>
 	<element name="level3" defstate="0">
+		<disk>
+			<color red="0" green="0" blue="0" />
+			<bounds x="-0.075" y="-0.075" width="1.15" height="1.15" />
+		</disk>
 		<disk state="1">
 			<color red="1.0" green="0.1" blue="0.15" />
+			<bounds x="0" y="0" width="1" height="1" />
 		</disk>
 		<disk state="0">
 			<color red="0.2" green="0.02" blue="0.03" />
+			<bounds x="0" y="0" width="1" height="1" />
 		</disk>
 		<text string="3">
 			<color red="0.0" green="0.0" blue="0.0" />
@@ -63,11 +81,17 @@
 		</text>
 	</element>
 	<element name="level4" defstate="0">
+		<disk>
+			<color red="0" green="0" blue="0" />
+			<bounds x="-0.075" y="-0.075" width="1.15" height="1.15" />
+		</disk>
 		<disk state="1">
 			<color red="1.0" green="0.1" blue="0.15" />
+			<bounds x="0" y="0" width="1" height="1" />
 		</disk>
 		<disk state="0">
 			<color red="0.2" green="0.02" blue="0.03" />
+			<bounds x="0" y="0" width="1" height="1" />
 		</disk>
 		<text string="4">
 			<color red="0.0" green="0.0" blue="0.0" />
@@ -75,11 +99,17 @@
 		</text>
 	</element>
 	<element name="level5" defstate="0">
+		<disk>
+			<color red="0" green="0" blue="0" />
+			<bounds x="-0.075" y="-0.075" width="1.15" height="1.15" />
+		</disk>
 		<disk state="1">
 			<color red="1.0" green="0.1" blue="0.15" />
+			<bounds x="0" y="0" width="1" height="1" />
 		</disk>
 		<disk state="0">
 			<color red="0.2" green="0.02" blue="0.03" />
+			<bounds x="0" y="0" width="1" height="1" />
 		</disk>
 		<text string="5">
 			<color red="0.0" green="0.0" blue="0.0" />