diff --git a/hash/ekara_japan.xml b/hash/ekara_japan.xml
index e90b8ffa908..f622a98969e 100644
--- a/hash/ekara_japan.xml
+++ b/hash/ekara_japan.xml
@@ -9,7 +9,7 @@ license:CC0
 	<!--
 
 	Japanese e-kara carts appear to have a number of different genres split across various
-	cart sub-series (often supporting different hw types) special releases etc.
+	cart sub-series (often supporting different hardware types) special releases etc.
 
 	This file is for the base set (number on case, ECxxxx-xxx part numbers)
 
@@ -25,8 +25,8 @@ license:CC0
 	G82 = 1982-1984 collection
 	BHT = Best Hit
 	BAT = Best Artist
-	SAI = (used with S series carts)
-	HKW = (used with S series carts)
+	SAI = Saiten Cartridge
+	HKW = Hikawa Kiyoshi
 	ATM = Artist Mini
 	TPJ = TV Pop
 	MIN = mini-moni
diff --git a/hash/ekara_japan_g.xml b/hash/ekara_japan_g.xml
index 72d9924f624..8828ee8a4d5 100644
--- a/hash/ekara_japan_g.xml
+++ b/hash/ekara_japan_g.xml
@@ -38,9 +38,11 @@ license:CC0
 	-->
 
 	<software name="gc0001">
+		<!-- Morning Musume, Petit Moni, Tanpopo -->
 		<description>Best Artist Volume 1 (Japan) (GC0001-BAT)</description>
 		<year>2000</year>
 		<publisher>Takara</publisher>
+		<info name="alt_title" value="ベストアーティスト Vol.1"/>
 		<part name="cart" interface="ekara_cart">
 			<dataarea name="rom" size="0x100000">
 				<rom name="gc0001-bat.u1" size="0x100000" crc="226224f3" sha1="d2609f342e19b0cd38678d2709866baa041658e7"/>
@@ -52,6 +54,7 @@ license:CC0
 		<description>Best Hit Volume 1 (Japan) (GC0002-BHT)</description>
 		<year>2000</year>
 		<publisher>Takara</publisher>
+		<info name="alt_title" value="ベストヒット Vol.1"/>
 		<part name="cart" interface="ekara_cart">
 			<dataarea name="rom" size="0x100000">
 				<rom name="gc0002-bht.u1" size="0x100000" crc="eae1cb3b" sha1="d1e594858eecde5409898684654caab0555ac1b4"/>
@@ -60,9 +63,11 @@ license:CC0
 	</software>
 
 	<software name="gc0003">
+		<!-- Utada Hikaru -->
 		<description>Best Artist Volume 2 (Japan) (GC0003-BAT)</description>
 		<year>2000</year>
 		<publisher>Takara</publisher>
+		<info name="alt_title" value="ベストアーティスト Vol.2"/>
 		<part name="cart" interface="ekara_cart">
 			<dataarea name="rom" size="0x100000">
 				<rom name="gc0003-bat.u1" size="0x100000" crc="49536d5a" sha1="c112b6ac62f586fc1d1615406362fc659e587772"/>
@@ -74,6 +79,7 @@ license:CC0
 		<description>Best Hit Volume 2 (Japan) (GC0004-BHT)</description>
 		<year>2000</year>
 		<publisher>Takara</publisher>
+		<info name="alt_title" value="ベストヒット Vol.2"/>
 		<part name="cart" interface="ekara_cart">
 			<dataarea name="rom" size="0x100000">
 				<rom name="gc0004-bht.u1" size="0x100000" crc="6d2e9711" sha1="0478578c297f14d78a6612ecd61387129bd6df42"/>
@@ -85,6 +91,7 @@ license:CC0
 		<description>Best Hit Volume 3 (Japan) (GC0006-BHT)</description>
 		<year>2000</year>
 		<publisher>Takara</publisher>
+		<info name="alt_title" value="ベストヒット Vol.3"/>
 		<part name="cart" interface="ekara_cart">
 			<dataarea name="rom" size="0x100000">
 				<rom name="gc0006-bht.u1" size="0x100000" crc="76bbefae" sha1="a2a41f58b5750fafa92d6e3094562dd05a5d9029"/>
@@ -93,9 +100,11 @@ license:CC0
 	</software>
 
 	<software name="gc0007">
+		<!-- Morning Musume, San-nin Matsuri, 7-nin Matsuri, 10-nin Matsuri -->
 		<description>Best Artist Volume 3 (Japan) (GC0007-BAT)</description>
 		<year>2000</year>
 		<publisher>Takara</publisher>
+		<info name="alt_title" value="ベストアーティスト Vol.3"/>
 		<part name="cart" interface="ekara_cart">
 			<dataarea name="rom" size="0x100000">
 				<rom name="gc0007-bat.u1" size="0x100000" crc="27b49bdb" sha1="2b64d978fc5df5869bc3c27d16642727e2d38999"/>
@@ -107,6 +116,7 @@ license:CC0
 		<description>mini-moni Volume 1 (Japan) (GC0008-MIN) (set 1)</description>
 		<year>2001</year>
 		<publisher>Takara</publisher>
+		<info name="alt_title" value="ミニモニ。"/>
 		<part name="cart" interface="ekara_cart">
 			<dataarea name="rom" size="0x200000">
 				<rom name="gc0008-min.u1" size="0x200000" crc="8414c402" sha1="340c432eec8eb2108b8364b5936dd22dc34b51a9"/>
@@ -118,6 +128,7 @@ license:CC0
 		<description>mini-moni Volume 1 (Japan) (GC0008-MIN) (set 2)</description>
 		<year>2001</year>
 		<publisher>Takara</publisher>
+		<info name="alt_title" value="ミニモニ。"/>
 		<part name="cart" interface="ekara_cart">
 			<dataarea name="rom" size="0x200000">
 				<rom name="gc0008-min(alt).u1" size="0x200000" crc="b34d1721" sha1="3621f02423f55c43d1b16855c01189719ddbcb6e"/>
@@ -141,6 +152,7 @@ license:CC0
 		<description>Best Artist Volume 4 (Japan) (GC0010-BAT)</description>
 		<year>2002</year>
 		<publisher>Takara</publisher>
+		<info name="alt_title" value="ベストアーティスト Vol.4"/>
 		<part name="cart" interface="ekara_cart">
 			<feature name="slot" value="rom_24lc02_gc0010"/>
 			<dataarea name="rom" size="0x100000">
@@ -167,6 +179,7 @@ license:CC0
 		<description>mini-moni Volume 2 (GC0014-MIN)</description>
 		<year>2002</year>
 		<publisher>Takara</publisher>
+		<info name="alt_title" value="ミニモニ。 Vol.2"/>
 		<part name="cart" interface="ekara_cart">
 			<feature name="slot" value="rom_24lc02"/> <!-- with 74HC125 -->
 			<dataarea name="rom" size="0x200000">
@@ -177,9 +190,11 @@ license:CC0
 
 	<!-- G15 looks like G16- 74HC125 and 24LC02. -->
 	<software name="gc0015">
+		<!-- Morning Musume, Petit Moni, Tanpopo -->
 		<description>Best Artist Volume 5 (Japan) (GC0015-BAT)</description>
 		<year>2002</year>
 		<publisher>Takara</publisher>
+		<info name="alt_title" value="ベストアーティスト Vol.5"/>
 		<part name="cart" interface="ekara_cart">
 			<feature name="slot" value="rom_24lc02"/> <!-- with 74HC125 -->
 			<dataarea name="rom" size="0x100000">
@@ -192,6 +207,7 @@ license:CC0
 		<description>TV Pop Volume 5 (Japan) (GC0016-TPJ)</description>
 		<year>2002</year>
 		<publisher>Takara</publisher>
+		<info name="alt_title" value="TV POPジュニアvol.5"/>
 		<part name="cart" interface="ekara_cart">
 			<feature name="slot" value="rom_24lc02"/> <!-- with 74HC125 -->
 			<dataarea name="rom" size="0x100000">
@@ -204,6 +220,7 @@ license:CC0
 		<description>TV Pop Volume 6 (Japan) (GC0017-TPJ)</description>
 		<year>2002</year>
 		<publisher>Takara</publisher>
+		<info name="alt_title" value="TV POPジュニアvol.6"/>
 		<part name="cart" interface="ekara_cart">
 			<feature name="slot" value="rom_24lc02"/> <!-- with 74HC125 -->
 			<dataarea name="rom" size="0x100000">
diff --git a/hash/ekara_japan_m.xml b/hash/ekara_japan_m.xml
index a6156fae3c8..1183628322f 100644
--- a/hash/ekara_japan_m.xml
+++ b/hash/ekara_japan_m.xml
@@ -40,6 +40,7 @@ license:CC0
 		<description>Artist Mini Volume 1 (Aya Matsuura) (Japan) (MC0001-ATM)</description>
 		<year>2003</year>
 		<publisher>Takara</publisher>
+		<info name="alt_title" value="アーティストミニ mini vol.1"/>
 		<part name="cart" interface="ekara_cart">
 			<dataarea name="rom" size="0x080000">
 				<rom name="mc0001-atm.u1" size="0x080000" crc="3ef59e82" sha1="d10f0b4a174bef736fea538028eacbeb46af5bbd"/>
@@ -52,6 +53,7 @@ license:CC0
 		<description>Artist Mini Volume 4 (w-inds) (Japan) (MC0004-ATM)</description>
 		<year>2003</year>
 		<publisher>Takara</publisher>
+		<info name="alt_title" value="アーティストミニ mini vol.4"/>
 		<part name="cart" interface="ekara_cart">
 			<dataarea name="rom" size="0x080000">
 				<rom name="mc0004-atm.u1" size="0x080000" crc="e9ba14c1" sha1="3cad1a6b0d1ba24dfb6c1aec84a6d87816b16d54"/>
@@ -74,6 +76,7 @@ license:CC0
 		<description>Kids Song Mini Volume 2 (Japan) (MC0006-KSM)</description>
 		<year>2003</year>
 		<publisher>Takara</publisher>
+		<info name="alt_title" value="キッズソングミニ mini vol.2"/>
 		<part name="cart" interface="ekara_cart">
 			<dataarea name="rom" size="0x080000">
 				<rom name="mc0006-ksm.u1" size="0x080000" crc="6d3c8c02" sha1="568a0e156a2189156149578277b6d615fe4e157f"/>
@@ -97,6 +100,7 @@ license:CC0
 		<description>Artist Mini Volume 7 (Ayumi Hamasaki) (Japan) (MC0012-ATM)</description>
 		<year>2003</year>
 		<publisher>Takara</publisher>
+		<info name="alt_title" value="アーティストミニ mini vol.7"/>
 		<part name="cart" interface="ekara_cart">
 			<dataarea name="rom" size="0x080000">
 				<rom name="mc0012-atm.u1" size="0x080000" crc="f31d3de9" sha1="41e4de960b2f348a4bed3b9b6d51229878e8c8f3"/>
@@ -108,6 +112,7 @@ license:CC0
 		<description>Kids Song Mini Volume 5 (Japan) (MC0013-KSM)</description>
 		<year>2003</year>
 		<publisher>Takara</publisher>
+		<info name="alt_title" value="キッズソングミニ mini vol.5"/>
 		<part name="cart" interface="ekara_cart">
 			<dataarea name="rom" size="0x080000">
 				<rom name="mc0013-ksm.u1" size="0x080000" crc="db05eafa" sha1="b58efcc41ad8d5571c319e0d88fa8a3d9badbe93"/>
@@ -119,6 +124,7 @@ license:CC0
 		<description>Artist Mini Volume 8 (BoA) (Japan) (MC0014-ATM)</description>
 		<year>2003</year>
 		<publisher>Takara</publisher>
+		<info name="alt_title" value="アーティストミニ mini vol.8"/>
 		<part name="cart" interface="ekara_cart">
 			<dataarea name="rom" size="0x080000">
 				<rom name="mc0014-atm.u1" size="0x080000" crc="170e02af" sha1="02b38146db7d74727f7dccf6dcc3d004979210a1"/>
diff --git a/hash/ekara_japan_s.xml b/hash/ekara_japan_s.xml
index 2b2837fadd4..15c1baed640 100644
--- a/hash/ekara_japan_s.xml
+++ b/hash/ekara_japan_s.xml
@@ -47,6 +47,7 @@ license:CC0
 		<description>Hello Kitty Special (Japan) (SC0001-KTY)</description>
 		<year>2001</year>
 		<publisher>Takara</publisher>
+		<info name="alt_title" value="ハローキティ"/> <!-- from title screen -->
 		<part name="cart" interface="ekara_cart">
 			<dataarea name="rom" size="0x100000">
 				<rom name="01.bin" size="0x100000" crc="0635e39f" sha1="bfe33b0de01e8618abfdd190abf752cee53a6403"/>
@@ -59,6 +60,7 @@ license:CC0
 		<description>Kids' Challenge Volume 1 (Japan) (SC0003-xxx)</description>
 		<year>2001</year>
 		<publisher>Takara</publisher>
+		<info name="alt_title" value="採点カートリッジ キッズチャレンジ"/> <!-- from title screen -->
 		<part name="cart" interface="ekara_cart">
 			<dataarea name="rom" size="0x100000">
 				<rom name="sc0003-.u1" size="0x100000" crc="935e3445" sha1="e86949467e65d515523629ca1e8f8b47cdaaacf0"/>
@@ -167,6 +169,7 @@ license:CC0
 		<description>Saiten Cartridge Challenge Artist (Japan) (SC0018-SAI)</description>
 		<year>2002</year>
 		<publisher>Takara</publisher>
+		<info name="alt_title" value="採点カートリッジ チャレンジアーティスト"/>
 		<part name="cart" interface="ekara_cart">
 			<dataarea name="rom" size="0x100000">
 				<rom name="sc0018-sai.u1" size="0x100000" crc="23545417" sha1="64b84de483c6c5d1129826324b30580a189077ea"/>
diff --git a/src/mame/konami/plygonet.cpp b/src/mame/konami/plygonet.cpp
index c4a1935d1cf..3bce515eb5d 100644
--- a/src/mame/konami/plygonet.cpp
+++ b/src/mame/konami/plygonet.cpp
@@ -1151,5 +1151,5 @@ ROM_END
 //-------------------------------------------------
 
 //    YEAR  NAME      PARENT   MACHINE   INPUT      STATE            INIT
-GAME( 1993, plygonet, 0,       plygonet, polygonet, polygonet_state, empty_init, ROT90, "Konami", "Polygonet Commanders (ver UAA)", MACHINE_NOT_WORKING | MACHINE_SUPPORTS_SAVE | MACHINE_NODEVICE_LAN )
-GAME( 1993, polynetw, 0,       plygonet, polynetw,  polygonet_state, empty_init, ROT90, "Konami", "Poly-Net Warriors (ver JAA)",    MACHINE_NOT_WORKING | MACHINE_SUPPORTS_SAVE | MACHINE_NODEVICE_LAN )
+GAME( 1993, plygonet, 0,       plygonet, polygonet, polygonet_state, empty_init, ROT90, "Konami", "Polygonet Commanders (ver UAA)", MACHINE_IMPERFECT_GRAPHICS | MACHINE_SUPPORTS_SAVE | MACHINE_NODEVICE_LAN )
+GAME( 1993, polynetw, 0,       plygonet, polynetw,  polygonet_state, empty_init, ROT90, "Konami", "Poly-Net Warriors (ver JAA)",    MACHINE_IMPERFECT_GRAPHICS | MACHINE_SUPPORTS_SAVE | MACHINE_NODEVICE_LAN )