diff --git a/hash/gamegear.xml b/hash/gamegear.xml
index bb896107ca0..185ca4ee83a 100644
--- a/hash/gamegear.xml
+++ b/hash/gamegear.xml
@@ -7298,7 +7298,7 @@ a certain item) -->
 	</software>
 
 	<software name="sonicc">
-		<description>Sonic Chaos (Euro, USA, Bra)</description>
+		<description>Sonic the Hedgehog Chaos (Euro, USA, Bra)</description>
 		<year>199?</year>
 		<publisher>Sega</publisher>
 		<info name="serial" value="2515, 1204, 077080"/>
@@ -7312,6 +7312,21 @@ a certain item) -->
 		</part>
 	</software>
 
+	<!-- Notes: Sega Europe labels; internal version not ideal for reference -->
+	<software name="sonicc517" cloneof="sonicc">
+		<description>Sonic the Hedgehog Chaos (Euro, Prototype 19930517)</description>
+		<year>1993</year>
+		<publisher>Sega</publisher>
+		<part name="cart" interface="gamegear_cart">
+			<dataarea name="rom" size="524288">
+				<rom name="gg sonic chaos 0 17-5.bin" size="131072" crc="19ac09ff" sha1="ce2b641a8907868fd314795e2e1d41b62cfa6ae7" offset="0x00000" />
+				<rom name="gg sonic chaos 1 17-5.bin" size="131072" crc="9e3ba273" sha1="02635627f0ebdb7a8cc5f5f835d051de497244c9" offset="0x20000" />
+				<rom name="gg sonic chaos 2 17-5.bin" size="131072" crc="8cfeb3c0" sha1="0b6eadcd60511bba0b22abdbef54e05ed1410cba" offset="0x40000" />
+				<rom name="gg sonic chaos 3 17-5.bin" size="131072" crc="d82f30e4" sha1="1f3a7c30363ddd6972dec7c114f11f4f62b96d50" offset="0x60000" />
+			</dataarea>
+		</part>
+	</software>
+
 	<software name="sonicdrs" cloneof="sonicdr">
 		<description>Sonic Drift (Jpn, Demo Sample)</description>
 		<year>1994</year>
diff --git a/hash/sms.xml b/hash/sms.xml
index 522059a458b..9c97b63c2d1 100644
--- a/hash/sms.xml
+++ b/hash/sms.xml
@@ -124,7 +124,7 @@
 
 	<!-- Notes: optional SK-1100 keyboard support -->
 	<software name="actionfg0" cloneof="actionfg">
-		<description>Action Fighter (v0, prototype)</description>
+		<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" />
@@ -6076,6 +6076,36 @@
 		</part>
 	</software>
 
+	<!-- Notes: Sega of Japan labels, unfortunately crashes after title screen -->
+	<software name="sonicc630" cloneof="sonicc" supported="no">
+		<description>Sonic the Hedgehog Chaos (Euro, "Ver 0.20", Prototype 19930630)</description>
+		<year>1993</year>
+		<publisher>Sega</publisher>
+		<part name="cart" interface="sms_cart">
+			<dataarea name="rom" size="524288">
+				<rom name="ms sonic 3 0.bin" size="131072" crc="538ef990" sha1="0eee07db9d64813ab343c7d2ebd70bb2a1c6b589" offset="0x00000" />
+				<rom name="ms sonic 3 1.bin" size="131072" crc="4cec61fe" sha1="c6ff6f80e9f71965fca1927fe9c49c355d633f64" offset="0x20000" />
+				<rom name="ms sonic 3 2.bin" size="131072" crc="95f3c5b5" sha1="08a918b028a2e646b280637dd81217feae5d435c" offset="0x40000" />
+				<rom name="ms sonic 3 3.bin" size="131072" crc="803893e6" sha1="138c4fb7c0e80d1d06b1ebc949a139594d876693" offset="0x60000" />
+			</dataarea>
+		</part>
+	</software>
+
+	<!-- Notes: Sega UK labels, mistakenly marked GG; internal version has not changed since sonicc630 and therefore is not ideal for reference -->
+	<software name="sonicc713" cloneof="sonicc">
+		<description>Sonic the Hedgehog Chaos (Euro, Prototype 19930713)</description>
+		<year>1993</year>
+		<publisher>Sega</publisher>
+		<part name="cart" interface="sms_cart">
+			<dataarea name="rom" size="524288">
+				<rom name="sonic chaos 0 gg 13-7 1m.bin" size="131072" crc="d8fae464" sha1="1873efcc4937c7e7c4b3c622f855615193229846" offset="0x00000" />
+				<rom name="sonic chaos 1 gg 13-7 1m.bin" size="131072" crc="b13ab99a" sha1="9e9575e50dba386917862c45f7af3acdf0e54e8e" offset="0x20000" />
+				<rom name="sonic chaos 2 gg 13-7 1m.bin" size="131072" crc="62625015" sha1="4cba6035f0b8e4ee2da372d9cdd0126af3807ddb" offset="0x40000" />
+				<rom name="sonic chaos 3 gg 13-7 1m.bin" size="131072" crc="fbd1c349" sha1="43c301b1439a83e57c6ab900a2838ea27fac7d25" offset="0x60000" />
+			</dataarea>
+		</part>
+	</software>
+
 	<software name="sonicedu">
 		<description>Sonic's Edusoft (Prototype)</description>
 		<year>19??</year>