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.

>>> TECHNICAL DETAILS
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Taito B System hardware
Prom Sticker : B72
Main CPU : 68000, Z80
Sound Chips : YM2203
Screen orientation : Vertical
Video resolution : 224 x 320 pixels
Screen refresh : 60.00 Hz
Palette colors : 4096
Players : 2
Control : 8-way joystick
Buttons : 2

>>> TRIVIA
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The title on the titlescreen is 'Master of Weapon' but the title was probably supposed to be 'Master of Weapons' as the marquee says it is.
A very rare prototype of this game is known as 'Yukiwo'.
Default highscore table (BEST 5) :
NO SCORE PLAY NAME
1 992300 1 Y.I
2 713000 4 KON
3 314000 4 TET
4 224000 2 T.M
5 191230 1 KYO
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.

>>> TRICKS AND TIPS
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* 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.

>>> DESIGNERS / PROGRAMMERS / STAFF
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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, 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 : Hisayoshi Ogura, Yasuhisa Watanabe
Graphic designed by : Hiroyasu Nagai, Kazuo Nakagawa, Animation 20

>>> GAME PORTS TO OTHER SYSTEMS
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Sega Mega Drive (1991)
Sony PlayStation 2 (2007, 'Taito Memories II Vol. 2')

>>> OTHER GAME RESOURCES
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Game's rom.