diff --git a/hash/gamegear.xml b/hash/gamegear.xml
index 2edcb32a100..8f163267a7a 100644
--- a/hash/gamegear.xml
+++ b/hash/gamegear.xml
@@ -1334,6 +1334,18 @@ a certain item) -->
 		</part>
 	</software>
 
+	<software name="cavedude"> <!-- based on Korean game Toto World 3, also found in the Australian 4 Pak All Action compilation -->
+		<description>Cave Dude (USA, prototype)</description>
+		<year>1993</year>
+		<publisher>Innovation Tech</publisher>
+		<part name="cart" interface="gamegear_cart">
+			<feature name="pin_42" value="sms_mode" />
+			<dataarea name="rom" size="262144">
+				<rom name="cave dude [proto] [sms-gg].sms" size="262144" crc="cc521975" sha1="f009d56f5a47068b991f44742c836ba2374f84a2" offset="000000" />
+			</dataarea>
+		</part>
+	</software>
+
 	<software name="chakan">
 		<description>Chakan (Euro, USA)</description>
 		<year>1992</year>
diff --git a/hash/sms.xml b/hash/sms.xml
index a5e70ea41e8..6a1243200fb 100644
--- a/hash/sms.xml
+++ b/hash/sms.xml
@@ -119,6 +119,18 @@
 			</dataarea>
 		</part>
 	</software>
+	
+	<software name="actionfg0" cloneof="actionfg">
+		<description>Action Fighter (v0, prototype)</description>
+		<year>1986</year>
+		<publisher>Sega</publisher>
+		<info name="alt_title" value="アクションファイター" />
+		<part name="cart" interface="sms_cart">
+			<dataarea name="rom" size="131072">
+				<rom name="action fighter [v0] [proto].bin" size="131072" crc="e2d765ad" sha1="88fe2ee194981c82b5db2a9166dd97a8edb6d852" offset="000000" />
+			</dataarea>
+		</part>
+	</software>	
 
 	<software name="actionfgtw" cloneof="actionfg">
 		<description>Action Fighter / Mo zhan che (Taiwan)</description>
@@ -1299,6 +1311,18 @@
 			</dataarea>
 		</part>
 	</software>
+	
+	<!-- Notes: FM support -->
+	<software name="captsilvp" cloneof="captsilv">
+		<description>Captain Silver (prototype)</description>
+		<year>1988</year>
+		<publisher>Sega</publisher>
+		<part name="cart" interface="sms_cart">
+			<dataarea name="rom" size="131072">
+				<rom name="captain silver [proto].bin" size="131072" crc="2532a7cd" sha1="e128c74fd5f0f1ad2f34d408feedff2bfe1adc71" offset="000000" />
+			</dataarea>
+		</part>
+	</software>	
 
 	<!-- Notes: FM support -->
 	<software name="casino">
@@ -5553,6 +5577,19 @@
 		</part>
 	</software>
 
+	<!-- port of an MSX title -->
+	<software name="skyfight">
+		<description>Sky Fighter (Kor)</description>
+		<year>1990</year>
+		<publisher>Clover Soft</publisher>
+		<info name="alt_title" value="보라매 전사"/>
+		<part name="cart" interface="sms_cart">
+			<dataarea name="rom" size="32768">
+				<rom name="sky fighter (kr).bin" size="32768" crc="77ba2667" sha1="afdd09097dce40c0af5ec01de0dfdc08482e9e0e" offset="000000" />
+			</dataarea>
+		</part>
+	</software>
+
 	<software name="skyjag">
 		<description>Sky Jaguar (Kor)</description>
 		<year>199?</year>
@@ -6773,7 +6810,7 @@
 			</dataarea>
 		</part>
 	</software>
-
+	
 	<software name="transbot">
 		<description>TransBot (Euro, USA, Bra)</description>
 		<year>1985</year>