diff --git a/hash/megadriv.xml b/hash/megadriv.xml
index 71091127a5f..571dab78323 100644
--- a/hash/megadriv.xml
+++ b/hash/megadriv.xml
@@ -27,10 +27,11 @@ license:CC0-1.0
     ROAD RASH                           USA         needs proper dump
     SIDE POCKET                         JAPAN/USA   conflict in current info
     SMURFS                              PAL         we have Rev A, Rev 0 needed (does it exist?)
+    SUPER FUTEBOL                       BRAZIL      TecToy rerelease of wcup90
     SUMISEI HOME TANMATSU               JAPAN
     VALIS III                           JAPAN       we have v1.1 (Rev A?), v1.0 (Rev 0?) needed
     WONDER MIDI                         JAPAN
-    WORLD CUP SOCCER                    JAPAN/USA   we have v1.0 (Rev ?), v1.2 (Rev ?) and v1.3 (Rev B), v1.1 (Rev ?) needed
+    WORLD CUP ITALIA 90                 WORLD       investigate if Japan ever got this, verify wcsa (v1.2), verify what the known PT/SE/CZ/AU versions are based off.
     WORLD OF ILLUSION                   JAPAN       we have v1.0 (Rev 0?), v1.1 (Rev A?) needed (confirmed by Xacrow)
 
 
@@ -9423,11 +9424,15 @@ Unsupported [Menacer] peripheral
 	</software>
 
 
-<!-- Only USA is confirmed -->
-	<software name="wcs" cloneof="wcup90">
+	<software name="wcs" cloneof="wcup90" supported="yes">
 		<description>World Championship Soccer (USA, rev. B) ~ World Cup Soccer (Japan, rev. B)</description>
 		<year>1989</year>
 		<publisher>Sega</publisher>
+		<notes><![CDATA[
+'89 Japan/USA release with "World Cup" title changed to "World Championship" due of Sega not having FIFA rights on USA units
+Fictional player names when mounted on USA/Europe units, real player names when mounted on Japan unit
+TODO: pinpoint what came out first, rev. B or 1.2?
+]]></notes>
 		<info name="serial" value="G-4009 (JPN)"/>
 		<info name="release" value="19890729 (JPN)"/>
 		<info name="alt_title" value="ワールドカップサッカー"/>
@@ -9441,11 +9446,14 @@ Unsupported [Menacer] peripheral
 	</software>
 
 
-<!-- Only Jpn is confirmed -->
-	<software name="wcsb" cloneof="wcup90">
-		<description>World Championship Soccer (USA) ~ World Cup Soccer (Japan)</description>
+	<software name="wcsb" cloneof="wcup90" supported="yes">
+		<description>World Cup Soccer (Japan, REV00)</description>
 		<year>1989</year>
 		<publisher>Sega</publisher>
+		<notes><![CDATA[
+Original release, title screen shows Soccer when mounted on USA/Europe units
+Real player names based off Mexico '86
+]]></notes>
 		<info name="serial" value="G-4009 (JPN)"/>
 		<info name="release" value="19890729 (JPN)"/>
 		<info name="alt_title" value="ワールドカップサッカー"/>
@@ -9488,11 +9496,16 @@ Unsupported [Menacer] peripheral
 	</software>
 
 
-<!-- Only Euro is confirmed -->
-	<software name="wcup90">
+	<software name="wcup90" supported="yes">
 		<description>World Cup Italia '90 (Europe)</description>
 		<year>1990</year>
-		<publisher>Sega</publisher>
+		<publisher>Sega / Olivetti / Virgin Mastertronic</publisher>
+		<notes><![CDATA[
+European final rerelease for Italy '90 World Cup
+Fictional player names regardless of region
+https://segaretro.org/World_Cup_Soccer#Versions
+https://tcrf.net/World_Championship_Soccer_(Genesis)
+]]></notes>
 		<part name="cart" interface="megadriv_cart">
 			<feature name="pcb" value="171-5703"/>
 			<feature name="ic1" value="MPR-13239-S"/>
@@ -32651,16 +32664,21 @@ Unsupported Mega-CD/Wondermega cart allowing EBXA format to be played back
 		</part>
 	</software>
 
-	<software name="wcsa" cloneof="wcup90">
+	<software name="wcsa" cloneof="wcup90" supported="yes">
 		<description>World Championship Soccer (USA, v1.2) ~ World Cup Soccer (Japan, v1.2)</description>
 		<year>1989</year>
 		<publisher>Sega</publisher>
+		<notes><![CDATA[
+'89 Japan/USA release with "World Cup" title changed to "World Championship" due of Sega not having FIFA rights on USA units
+Fictional player names regardless of region
+TODO: according to TCRF v1.2 shouldn't have title screen change for USA units, investigate for possible hacked dump
+]]></notes>
 		<info name="serial" value="G-4009 (JPN)"/>
 		<info name="release" value="19890729 (JPN)"/>
 		<info name="alt_title" value="ワールドカップサッカー"/>
 		<part name="cart" interface="megadriv_cart">
 			<dataarea name="rom" width="16" endianness="big" size="262144">
-				<rom name="world cup soccer -- world championship soccer (usa, jpn) (v1.2).bin" size="262144" crc="bf84ede6" sha1="ef8c106acad9c3b4a5db2cd0d311762491d28392"/>
+				<rom name="world cup soccer -- world championship soccer (usa, jpn) (v1.2).bin" size="262144" crc="bf84ede6" sha1="ef8c106acad9c3b4a5db2cd0d311762491d28392" />
 			</dataarea>
 		</part>
 	</software>