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masterw: MAME ROM Information.


Master of Weapon (c) 1989 Taito.

A seven-day nuclear storm brings on a big change on the earth. The earth cracks, the sea boils and the living things change. And human is no exception. After finishing of the cursed 7-day war, the remaining people change their cells and return to the nature in order to endure severe environmental changes. However, a selected part of the people - they had been called scientists - create a computer, which can lead the people in order to leave a seed humankind. This computer is called N.


Taito B System hardware

Prom Sticker : B72

Main CPU : 68000, Z80

Sound Chips : YM2203

Players : 2

Control : 8-way joystick

Buttons : 2


Released in May 1989 in Japan.

The title on the title screen is "Master of Weapon" but the title was probably supposed to be "Master of Weapons" as the marquee says it is.

Master of Weapon was very unpopular, mostly because it was too difficult for its time. Also, it was released during the 'Tetris era' and most of the Master of Weapon boards (Taito B System) were replaced by Sega's Tetris. Despite unpopularity, some Taito fans still love Master of Weapon because the game displayed excellent graphics and an unique BGM.

After the commercial failure of Master of Weapon, Taito decided to not continue the development of vertical shoot'em ups. So, the famous company Toaplan developed their next shoot'em up game, "Twin Hawk".

A very rare prototype of this game is known as 'Yukiwo'. According to the adviser Senba Takatsuna, Taito Game Sales Department requested to change the game name before the release. 'Yukiwo' is the character name and was also from the first name of the programmer, Yukiwo Ishikawa (Y.I), later known as 'Yukio Abe' and producer of "Rayforce" which the game system was inspired by Master of Weapon. Originally, the game was planned to be a 2-Player simultaneous game but it becomes a 1-Player game after the name change.

Senba Takatsuna said the game's development took about 6 months. The Mecha design was inspired by the famous anime 'Akira'.

The music composer Hisayoshi Ogura didn't compose the actual BGM. He only did the arrangement. The actual composer is not credited on the ending staff roll but is V. Osahi. Wthe game changed his name to Master Of weapon, the development needed to be faster. So, V. Osahi remixed sounds from "Jigoku Meguri" and "Fighting Hawk".

Buddhism's symbols appear in Act 1 and Act 6.

Default highscore table (BEST 5) :


1 992300 1 Y.I

2 713000 4 KON

3 314000 4 TET

4 224000 2 T.M

5 191230 1 KYO

Gamest (Japanese arcade magazine), December 1989, a Japanese gamer called 'RVS-R. Y' got a high score of 3,922,260 points.

Pony Canyon / Scitron released a limited-edition soundtrack album for this game (Taito DJ Station : G.S.M. Taito 5 - PCCB-00037) on 21/08/1990.


* Levels Select : Boot machine with service switch pressed.

Message appears : SERVICE SWITCH ERROR, press 1p Start(x3), service switch, 1p Start.

Message appears : SELECT BY DOWN SW, select level with joy Down/Up and push Start button.

* Good End : If you continue 5 times, you can have access to the last boss, defeat it to see the good end.

* 'Yukiwo' Charater : When you hit specific building in act 1, you can see 'yukiwo' charater written by Kanakata.

* Random boss : In act 4, after vanishing the first huge spaceship, small house appears in meadow. If you hit this house, a hidden boss will appears (this boss is the final boss in Metal Black and Galatic Storm).


Directed & produced by : George Jyuttute

Game & character designed by : Yukiwo Ishikawa (Y.I)

Programmed by : George K-5, Takeshi Murata (T.M), Creamy Tetsu (TET), Maryin Kondoh

Art designed by : Yukiwo Ishikawa (Y.I), Takako Kojima, Dandy Yarita, Makoto Fujita, Akira Saitoh, Hisakazu Katoh, Oolong Yamada, Kenji Hazama, Animation 20, Santa Claus

Hardware designed by : Eikichi Takahashi, Hiroyuki Noguchi

Music composed & arranged by : V. Osahi(Pinch Panchi), Hisayoshi Ogura, Yasuhisa Watanabe

Graphic designed by : Hiroyasu Nagai, Kazuo Nakagawa, Animation 20

Special thanks to : Takeshi Ishizashi, Hidehiro Fujiwara, Keiichi Shibata, Ichirou Fujisue, Kenji Kaidoh, Tomio Takeda, Hiroshi Tsujino, Akira Fujita, Toshio Kohno, Masami Kikuchi, Kazuhiro Numata, Takashi Kitayabashi, Takamasa Hori


* Consoles :

Sega Mega Drive [JP] (Sep.1991) [Model T-11083]

Sony PlayStation 2 [JP] (2007, "Taito Memories II Gekan [Model SLPM-66713]")


Game's rom.

MAME Info:

0.37b5 [Jarek Burczynski]


- 0.136u4: Fabio Priuli fixed Master of Weapon freezes.

- 0.129u4: Team Japump added clone Master of Weapon (Japan). Fixed rom names.

- 0.106u3: Added 'Cabinet' and fixed 'Ship Type' dipswitch.

- 0.99u3: Arzeno Fabrice added clone Master of Weapon (US).

- 0.53: Changed YM2203 clock speed to 3MHz.

- 0.37b5: Jarek Burczynski added Master of Weapon (World) (Taito 1989).

- 11th July 2000: Jarek Burczynski added Space Invaders DX, Violence Fight, Master of Weapon and Silent Dragon to the Taito-B driver.


- Seven-day nuclear storm brings on a big change on the earth. The earth cracks, the sea boils, and the living things change. And human is no exception. After finishing of cursed 7-day war, the remaining people change their cells and return to the nature in order to endure severe environmental changes. However, a selected part of the people - they had been called scientists - create a computer, which can lead the people in order to leave a seed humankind. This computer is called N.


Other Emulators:

* FB Alpha

* Raine

Recommended Games (Airforce 3):

Tokio / Scramble Formation

World Wars

Asuka & Asuka

Image Fight


Master of Weapon

Air Duel

Gun & Frontier


Raiden II

Raiden DX

Raiden II / DX

Raiden Fighters

Raiden Fighters 2

Raiden Fighters Jet

Thunder Dragon

Thunder Dragon 2

Turbo Force

Aero Fighters

Aero Fighters 2

Aero Fighters 3

Aero Fighters Special

Grid Seeker

Sand Scorpion

Sky Alert


Zing Zing Zip



Fire Barrel

Mad Shark

U.N. Defense Force: Earth Joker



Bee Storm - DoDonPachi II

DoDonPachi Dai-Ou-Jou

Air Gallet

Battle Garegga

Battle Bakraid

Skull Fang

Storm Blade

Sengeki Striker


Guardian Storm

Stagger I

Change Air Blade

1945k III

Romset: 1600 kb / 7 files / 460.2 zip

MAME XML Output:

       <game name="masterw" sourcefile="taito_b.c">
              <description>Master of Weapon (World)</description>
              <manufacturer>Taito Corporation Japan</manufacturer>
              <rom name="b72_06.33" size="131072" crc="ae848eff" sha1="8715e64c5e03097aff5bf1a27e3809619a7731f0" region="maincpu" offset="0"/>
              <rom name="b72_12.24" size="131072" crc="7176ce70" sha1="f3462ab9fe7e118b16fbe31d8caca27452280bf9" region="maincpu" offset="1"/>
              <rom name="b72_04.34" size="131072" crc="141e964c" sha1="324e881317a3bf9885c81bb53cdc3de782ec2952" region="maincpu" offset="40000"/>
              <rom name="b72_03.25" size="131072" crc="f4523496" sha1="2c3e9d014ace1ae5127f432292f8d19c3a0ae1b0" region="maincpu" offset="40001"/>
              <rom name="b72_07.30" size="65536" crc="2b1a946f" sha1="cc9512e44bd92020ab5a53716b6399b7a6cde76d" region="audiocpu" offset="0"/>
              <rom name="b72-02.rom" size="524288" crc="c519f65a" sha1="f40cd7e09fa50abdafa95b7f9edf229e94e53d6f" region="gfx1" offset="0"/>
              <rom name="b72-01.5" size="524288" crc="a24ac26e" sha1="895715a2bb0cb15334cba2283bd228b4fc08cd0c" region="gfx1" offset="80000"/>
              <chip type="cpu" tag="maincpu" name="68000" clock="12000000"/>
              <chip type="cpu" tag="audiocpu" name="Z80" clock="4000000"/>
              <chip type="audio" tag="mono" name="Speaker"/>
              <chip type="audio" tag="ymsnd" name="YM2203" clock="3000000"/>
              <display tag="screen" type="raster" rotate="270" width="320" height="224" refresh="60.000000" />
              <sound channels="1"/>
              <input players="2" buttons="2" coins="2" tilt="yes">
                     <control type="joy" ways="8"/>
              <dipswitch name="Cabinet" tag="DSWA" mask="1">
                     <dipvalue name="Upright" value="0" default="yes"/>
                     <dipvalue name="Cocktail" value="1"/>
              <dipswitch name="Flip Screen" tag="DSWA" mask="2">
                     <dipvalue name="Off" value="2" default="yes"/>
                     <dipvalue name="On" value="0"/>
              <dipswitch name="Service Mode" tag="DSWA" mask="4">
                     <dipvalue name="Off" value="4" default="yes"/>
                     <dipvalue name="On" value="0"/>
              <dipswitch name="Demo Sounds" tag="DSWA" mask="8">
                     <dipvalue name="Off" value="0"/>
                     <dipvalue name="On" value="8" default="yes"/>
              <dipswitch name="Coin A" tag="DSWA" mask="48">
                     <dipvalue name="4 Coins/1 Credit" value="0"/>
                     <dipvalue name="3 Coins/1 Credit" value="16"/>
                     <dipvalue name="2 Coins/1 Credit" value="32"/>
                     <dipvalue name="1 Coin/1 Credit" value="48" default="yes"/>
              <dipswitch name="Coin B" tag="DSWA" mask="192">
                     <dipvalue name="1 Coin/2 Credits" value="192" default="yes"/>
                     <dipvalue name="1 Coin/3 Credits" value="128"/>
                     <dipvalue name="1 Coin/4 Credits" value="64"/>
                     <dipvalue name="1 Coin/6 Credits" value="0"/>
              <dipswitch name="Difficulty" tag="DSWB" mask="3">
                     <dipvalue name="Easy" value="2"/>
                     <dipvalue name="Medium" value="3" default="yes"/>
                     <dipvalue name="Hard" value="1"/>
                     <dipvalue name="Hardest" value="0"/>
              <dipswitch name="Bonus Life" tag="DSWB" mask="12">
                     <dipvalue name="500k, 1000k and 1500k" value="8"/>
                     <dipvalue name="500k and 1000k" value="12" default="yes"/>
                     <dipvalue name="500k only" value="4"/>
                     <dipvalue name="None" value="0"/>
              <dipswitch name="Lives" tag="DSWB" mask="48">
                     <dipvalue name="3" value="48" default="yes"/>
                     <dipvalue name="4" value="32"/>
                     <dipvalue name="5" value="16"/>
                     <dipvalue name="6" value="0"/>
              <dipswitch name="Unused" tag="DSWB" mask="64">
                     <dipvalue name="Off" value="64" default="yes"/>
                     <dipvalue name="On" value="0"/>
              <dipswitch name="Ship Type" tag="DSWB" mask="128">
                     <dipvalue name="Space Ship" value="128" default="yes"/>
                     <dipvalue name="Hover Cycle" value="0"/>
              <driver status="good" emulation="good" color="good" sound="good" graphic="good" savestate="supported" palettesize="4096"/>

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