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Geo Storm (Japan, 026 custom sound CPU) - MAME machine

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geostorma
Geo Storm (Japan, 026 custom sound CPU)
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GAME SYSTEM CHD BIOS DEVICE PARENT CLONE MECHANICAL SCREENLESS

Main data
Romset and name:
geostorma Geo Storm (Japan, 026 custom sound CPU)
Short name:
Geo Storm
Manufacturer:
Irem
Year:
1994
Genre:
Platform
Category:
Platform / Shooter Scrolling
Serie:
Gunforce
Driver source:
irem/m92.cpp
Language:
English
Similar games:
Input / Controls
Players:
Up to 2 players (solo, 2 concurrents)
Input:
Joystick 8 ways
Buttons / keys:
2
Coins:
2
Cabinet:
-
Free-play:
Supported

Rankings
Average user rating:
AntoPISA BestGame:
-
MASH All-Time:
-
Video
Display:
320x240@60 Hz, CRT 15kHz
Orientation:
Horizontal
Scrolling:
Unknown
Colors:
-
CPU:
NEC V33, NEC V35
Audio
Sound:
Mono
Audio chips:
Irem GA20, Speaker, YM2151 OPM
Romset
First release:
Mame 0.260 released on oct-24 2023
Last release:
Mame 0.272 released on nov-30 2024
Clone of:
gunforc2 Gun Force II (US)
Bios:
Not required
Use rom of:
-
Use sample of:
-
Previous romset:
None
New romset:
None
Files
Dump:
GOOD
Required files:
Romset:
Status
OVERALL:
GOOD
Emulation:
Good
Graphic:
Good
Color:
Good
Sound:
Good
Cocktail:
Preliminary
Protection:
Good
Save state:
Supported
Additional infos
  • History
  • Info
  • Score
  • PCB
  • Commands
  • Init
  • Driver
  • XML
  • Arcade Video game published 30 years ago:

    Geo Storm © 1994 Irem Corp.

    Geo Storm is a scrolling run 'n' gun platform shoot-em-up for one or two players who must battle their way through numerous enemy-packed stages, each ending with a tough boss battle.

    Each player-character weilds two machine guns simultaneously and can fire in all directions. At certain points during a stage, players may find armoured vehicles that can be entered and driven, offering increased fire-power and protection from enemy weapons, but if a vehicle takes too many hits, players must quickly exit it before it explodes. Enemy troops also have vehicles at their disposal.

    Each stage is littered with sexy female hostages waiting to be rescued and medals can be collected for extra bonus points.

    TECHNICAL
    Irem M-92G system hardware

    Main CPU: V33 (@ 9 Mhz), V30 (@ 7.15909 Mhz)
    Sound Chips: Yamaha YM2151 (@ 3.579545 Mhz), GA20 (@ 3.579545 Mhz)

    Players: 2
    Control: 8-way joystick
    Buttons: 2

    TRIVIA
    Geo Storm was released in September 1994 in Japan.

    The game was originally an order from the USA, Gun Force had a nice success in the US, so a sequel would be a great idea. It's why it is known in US as "Gun Force II".

    The development was chaotic since Irem closes its doors (March 1994) before the release of the game.

    During development, this game was code named 'A2'. The name Geo Storm came from the name of the game designer's sport car of these days; the Isuzu's Geo Storm.

    Some musics in this game are directly recycled (and remixed) from "Air Duel", another Irem game from 1990.
    The Stage 1 music is a remixed version of the Stage 4 music of "Air Duel".
    The Stage 2 part 1 music is a remixed version of the Stage 1 music of "Air Duel".
    The Stage 2 part 2 music is a remixed version of the Stage 3 music of "Air Duel".

    The voices of the female prisoneers were done by the sound designer itself, Hiya!, then re-worked on the computer.

    SERIES
    • Gun Force - Battle Fire Engulfed Terror Island (1991)
    • Geo Storm (1994)

    STAFF
    Game designer: Meeher
    Graphist: T. Okui
    Sound designer: Hiyamuta (Hiya!)

    CONTRIBUTE
    Edit this entry: https://www.arcade-history.com/?&page=detail&id=946&o=2
    Informations provided by © Alexis Bousiges
    Informations provided by Contribute to the translation
  • Informations provided by
    Informations provided by / © Copyright of Fujix
  • Informations provided by
  • Informations provided by
  • Informations provided by Fabricio Coroquer, revisited from the work of
    NOTICE: The short version was discontinued in November 2019
  • Informations provided by Contribute
  • Informations provided by
  • Informations provided by
Dip-switches:
Cheats:
Ports:
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Data updated on november 30 2024


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geostorma
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Geo Storm
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