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plusalph: MAME ROM Information.


Plus Alpha (c) 1989 Jaleco.


Jaleco Mega System 1-A hardware

Main CPU : 68000 (@ 12 Mhz)

Sound CPU : 68000 (@ 7 Mhz)

Sound Chips : YM2151 (@ 3.5 Mhz), (2x) OKI6295 (@ 30.303 Khz)

Players : 2

Control : 8-way joystick

Buttons : 2


Released in June 1989 in Japan.

Pony Canyon / Scitron released a limited-edition soundtrack album for this game (Plus Alpha - PCCB-00015) on 15/12/1989.


Main programmer : Papa Sekiya

Character programmer : Motoko

Special programmer : Yuma Yoshida

Main character designer : Rolling.N

Character designers : Otappie Etoh, U. Keijiro

Main scroll designer : Nekomasa

Scroll designers : Markun!, Otatuku

Opening designer : Nekomasa

Present designer : Markun! Takahashi

Ending designer : Otatuku Etoh

Sound : Tsukasa Tawada

Voice actress : Eppin Honda

Sound programmer : Panic Yunma

Game designer : Momonga


Game's rom.

MAME Info:

0.36b7 [Luca Elia]

0.35b4 [Luca Elia]


- 0.143u6: Angelo Salese added preliminary MCU handshake simulation sequence for Plus Alpha and removed ROM patches.

- 0.36b14: Changed 68000 CPU1 clock speed from 7MHz to 12MHz.

- 0.36b7: Luca Elia added Plus Alpha (Jaleco 1989).

- 8th October 1999: Luca Elia sent in a huge Mega System 1 update with many fixes and new drivers for Chimera Beast, Iga Ninjyutsuden, Plus Alpha and Peek-a-Boo.

- 0.35b4: Luca Elia added Plus Alpha (Testdriver).


Other Emulators:

* Raine

Recommended Games (Space Kids)

Kozmik Kroozr


Bells & Whistles

Twin Bee Yahhoo!

Dr. Toppel Tankentai

Gemini Wing

Wonder Planet

Plus Alpha

SD Gundam Neo Battling

The Game Paradise - Master of Shooting!

Silver Millennium

Twinkle Star Sprites

Captain Tomaday

Diet Family

Romset: 2497 kb / 23 files / 946.3 zip

MAME XML Output:

       <game name="plusalph" sourcefile="megasys1.c">
              <description>Plus Alpha</description>
              <rom name="pa-rom2.bin" size="131072" crc="33244799" sha1="686fb7fa8a6c25b5aff78bc509f35c69492d7d1e" region="maincpu" offset="0"/>
              <rom name="pa-rom1.bin" size="131072" crc="a32fdcae" sha1="c2315a7142e5499e9325f5a8361cb25e83747a3e" region="maincpu" offset="1"/>
              <rom name="pa-rom3.bin" size="65536" crc="1b739835" sha1="3aaa9545a7f578a9775311dcd44504870f3b1544" region="maincpu" offset="40000"/>
              <rom name="pa-rom4.bin" size="65536" crc="ff760e80" sha1="dd06306a516a2d5e49cf8f2343ddc26405b309a9" region="maincpu" offset="40001"/>
              <rom name="pa-rom5.bin" size="65536" crc="ddc2739b" sha1="dee31660428baea44c73dec238ed7f39a6771fe6" region="soundcpu" offset="0"/>
              <rom name="pa-rom6.bin" size="65536" crc="f6f8a167" sha1="60d5c9db18d8f6704b68ccde5d026174679cec36" region="soundcpu" offset="1"/>
              <rom name="m50747" size="4096" status="nodump" region="mcu" offset="0"/>
              <rom name="pa-rom11.bin" size="131072" crc="eb709ae7" sha1="434c9da3c79a97ddd9be77908ce65e9efe6c8106" region="gfx1" offset="0"/>
              <rom name="pa-rom12.bin" size="131072" crc="cacbc350" sha1="328094a5d067775871f7d69b4c20c40e46b0eaba" region="gfx1" offset="20000"/>
              <rom name="pa-rom13.bin" size="131072" crc="fad093dd" sha1="98a42f91d66b990e18f845edc01c23568cbc7a83" region="gfx1" offset="40000"/>
              <rom name="pa-rom14.bin" size="131072" crc="d3676cd1" sha1="b805216af1a65c2f19a82aaf3775bbbceb065c7e" region="gfx1" offset="60000"/>
              <rom name="pa-rom15.bin" size="131072" crc="8787735b" sha1="9083061ce6de98a611558fc59d1ec37aefc2a2e0" region="gfx2" offset="0"/>
              <rom name="pa-rom16.bin" size="131072" crc="a06b813b" sha1="de4fb0f92f9178c2b5f2750d17cfc3da126b23a4" region="gfx2" offset="20000"/>
              <rom name="pa-rom17.bin" size="131072" crc="c6b38a4b" sha1="2529ee47324edcdf4cd34c159524f37da08e1099" region="gfx2" offset="40000"/>
              <rom name="pa-rom19.bin" size="65536" crc="39ef193c" sha1="93f417a36732ca76d566f2ff2c9ff62e5679da08" region="gfx3" offset="0"/>
              <rom name="pa-rom20.bin" size="131072" crc="86c557a8" sha1="a6dfb2aeda07639448a4135d1336019214030fc9" region="gfx4" offset="0"/>
              <rom name="pa-rom21.bin" size="131072" crc="81140a88" sha1="f31ae208623bdb152888e1ebdd2515f9bcc2fb44" region="gfx4" offset="20000"/>
              <rom name="pa-rom22.bin" size="131072" crc="97e39886" sha1="89161ae647c835ff24fcb8676f6e1228f9a1fa10" region="gfx4" offset="40000"/>
              <rom name="pa-rom23.bin" size="131072" crc="0383fb65" sha1="31fa9c9ba57bf3c9ee8e3f5b1b4e28c1a3591a4b" region="gfx4" offset="60000"/>
              <rom name="pa-rom9.bin" size="131072" crc="065364bd" sha1="bacb268b1c76c286e89eb823d8c3477ec5f2516c" region="oki1" offset="0"/>
              <rom name="pa-rom10.bin" size="131072" crc="395df3b2" sha1="6f69b573e997ba4bb5aabf745843921f0866d209" region="oki1" offset="20000"/>
              <rom name="pa-rom7.bin" size="131072" crc="9f5d800e" sha1="c0a7bdedc8a1294b8d29f7f6007542ea006e70cb" region="oki2" offset="0"/>
              <rom name="pa-rom8.bin" size="131072" crc="ae007750" sha1="b48784fd6bcf205296e3e5b59c258f76da5c2d1b" region="oki2" offset="20000"/>
              <rom name="prom.14m" size="512" crc="1d877538" sha1="a5be0dc65dcfc36fbba10d1fddbe155e24b6122f" region="proms" offset="0"/>
              <chip type="cpu" tag="maincpu" name="68000" clock="6000000"/>
              <chip type="cpu" tag="soundcpu" name="68000" clock="7000000"/>
              <chip type="audio" tag="lspeaker" name="Speaker"/>
              <chip type="audio" tag="rspeaker" name="Speaker"/>
              <chip type="audio" tag="ymsnd" name="YM2151" clock="3500000"/>
              <chip type="audio" tag="oki1" name="OKI6295" clock="4000000"/>
              <chip type="audio" tag="oki2" name="OKI6295" clock="4000000"/>
              <display tag="screen" type="raster" rotate="270" width="256" height="224" refresh="60.000000" />
              <sound channels="2"/>
              <input players="2" buttons="2" coins="2">
                     <control type="joy" ways="8"/>
              <dipswitch name="Lives" tag="DSW" mask="3">
                     <dipvalue name="3" value="3" default="yes"/>
                     <dipvalue name="4" value="2"/>
                     <dipvalue name="5" value="1"/>
                     <dipvalue name="Infinite (Cheat)" value="0"/>
              <dipswitch name="Hyper Laser Beams" tag="DSW" mask="4">
                     <dipvalue name="2" value="0"/>
                     <dipvalue name="3" value="4" default="yes"/>
              <dipswitch name="Bonus Life" tag="DSW" mask="8">
                     <dipvalue name="70k and every 200k" value="8" default="yes"/>
                     <dipvalue name="100k and 300k Only" value="0"/>
              <dipswitch name="Difficulty" tag="DSW" mask="48">
                     <dipvalue name="Easy" value="0"/>
                     <dipvalue name="Normal" value="48" default="yes"/>
                     <dipvalue name="Hard" value="16"/>
                     <dipvalue name="Hardest" value="32"/>
              <dipswitch name="Cabinet" tag="DSW" mask="64">
                     <dipvalue name="Upright" value="0" default="yes"/>
                     <dipvalue name="Cocktail" value="64"/>
              <dipswitch name="Flip Screen" tag="DSW" mask="128">
                     <dipvalue name="Off" value="128" default="yes"/>
                     <dipvalue name="On" value="0"/>
              <dipswitch name="Coin A" tag="DSW" mask="1792">
                     <dipvalue name="3 Coins/1 Credit" value="1024"/>
                     <dipvalue name="2 Coins/1 Credit" value="512"/>
                     <dipvalue name="1 Coin/1 Credit" value="1792" default="yes"/>
                     <dipvalue name="1 Coin/2 Credits" value="768"/>
                     <dipvalue name="1 Coin/3 Credits" value="1280"/>
                     <dipvalue name="1 Coin/4 Credits" value="256"/>
                     <dipvalue name="1 Coin/5 Credits" value="1536"/>
                     <dipvalue name="Free Play" value="0"/>
              <dipswitch name="Coin B" tag="DSW" mask="14336">
                     <dipvalue name="4 Coins/1 Credit" value="0"/>
                     <dipvalue name="3 Coins/1 Credit" value="8192"/>
                     <dipvalue name="2 Coins/1 Credit" value="4096"/>
                     <dipvalue name="1 Coin/1 Credit" value="14336" default="yes"/>
                     <dipvalue name="1 Coin/2 Credits" value="6144"/>
                     <dipvalue name="1 Coin/3 Credits" value="10240"/>
                     <dipvalue name="1 Coin/4 Credits" value="2048"/>
                     <dipvalue name="1 Coin/5 Credits" value="12288"/>
              <dipswitch name="Demo Sounds" tag="DSW" mask="16384">
                     <dipvalue name="Off" value="0"/>
                     <dipvalue name="On" value="16384" default="yes"/>
              <dipswitch name="Freeze Screen (Cheat)" tag="DSW" mask="32768">
                     <dipvalue name="Off" value="32768" default="yes"/>
                     <dipvalue name="On" value="0"/>
              <driver status="good" emulation="good" color="good" sound="good" graphic="good" savestate="unsupported" palettesize="1024"/>

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