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Geo Storm (Japan)

  1. Game infos
  2. Parent and Clones
  3. Sound
  4. Driver
  5. Inputs
  6. Controls
  7. Display
  8. Dipswitchs
  9. Roms list
  10. Chips list
  11. Serie
  12. Categories
  13. History
Download geostorm.zip (0 B)
Snapshot

Game infos

Description Geo Storm (Japan)
Name geostorm
Manufacturer Irem
Year 1994
Runnable yes
System arcade /
Number of players 2P sim
Added to MAME .058
Romset size 0 B
Romset file files
Romset zip 0 B
Language Japanese
Genre Platform

Parent and clones

Parent gunforc2 : Gun Force II (US) (1994)

Sound infos

Sound_channels 1

Driver infos

Driver status good
Driver emulation good
Driver color good
Driver sound good
Driver graphic good
Driver cocktail preliminary
Driver protection
Driver savestate yes

Inputs infos

Input service yes
Input tilt no
Input players 2
Input buttons
Input coins 2

Controls infos

type ways minimum maximum sensitivity keydelta reverse
joy 8 no

Display infos

type rotate flipx width height refresh pixclock htotal hbend hbstart vtotal vbend vbstart
raster 0 no 320 240 60

Dipswitchs

Roms list

console name bios size crc md5 merge sha1 region offset status optional
arcade a2-h1-a.6f 262144 34280b88 a2-h1-a.6f 3fd3cdf8acfa845abacb0708fb48741ee44dbf13 maincpu 80001 good no
arcade a2-l1-a.8f 262144 c8c13f51 a2-l1-a.8f fde3fd983ebb920f79e6898aa0576da9dd9f0c15 maincpu 80000 good no
arcade a2_000.8a 1048576 38e03147 a2_000.8a cc5bacad9592aa5e91632b139955e1c704a67a33 gfx2 0 good no
arcade a2_010.8b 1048576 1d5b05f8 a2_010.8b 884f134ed51b432965a4e5e79915ba9c0ab562c6 gfx2 100000 good no
arcade a2_020.8c 1048576 f2f461cc a2_020.8c 04e91efc749d022c8012caac493767ec1f6a992d gfx2 200000 good no
arcade a2_030.8d 1048576 97609d9d a2_030.8d 71ddff85a8ddeac69863bbf6c493c5c3973fd175 gfx2 300000 good no
arcade a2_c0.1a 524288 68b8f574 a2_c0.1a fb935947cdde43e84453f82caeea141a4ae7226d gfx1 0 good no
arcade a2_c1.1b 524288 0b9efe67 a2_c1.1b 1df4108d30d2538f6407e328513517cd3412321f gfx1 80000 good no
arcade a2_c2.3a 524288 7a9e9978 a2_c2.3a 241dc310e75960e306701a2e86e30d9c1a60ebff gfx1 100000 good no
arcade a2_c3.3b 524288 1395ee6d a2_c3.3b e9befc966e6ee046eaca185a9969976304a119d8 gfx1 180000 good no
arcade a2_da.1l 1048576 3c8cdb6a a2_da.1l d1f4186e8ddf99698443f8ee1c60a6e6bc367b09 irem 0 good no
arcade a2_sh0.3l 65536 2e2d103d a2_sh0.3l 6b663948f69218308d9ecdb677557b2db1dfbf5a soundcpu 1 good no
arcade a2_sl0.5l 65536 2287e0b3 a2_sl0.5l 755dab510915161428ed57ab18410c393e138e65 soundcpu 0 good no
arcade geo-h0.bin 262144 9be58d09 ab98b91abc8129c342c59674eab9683cccc6ca35 maincpu 1 good no
arcade geo-l0.bin 262144 59abb75d 52b48685470ffa3f36a8259bf333448bf40caea9 maincpu 0 good no

Chips list

name tag type clock
Irem GA20 irem audio 3579545
Speaker mono audio
V33 maincpu cpu 9000000
V35 soundcpu cpu 14318181
YM2151 ymsnd audio 3579545

Serie

Serie : Gunforce
  1. Gunforce - Battle Fire Engulfed Terror Island (World) (1991)
  2. Gunforce - Battle Fire Engulfed Terror Island (Japan) (1991)
  3. Gunforce - Battle Fire Engulfed Terror Island (US) (1991)
  4. GunForce - Battle Fire Engulfed Terror Island (Euro, Prototype) (1992)
  5. GunForce - Battle Fire Engulfed Terror Island (Jpn) (1992)
  6. GunForce - Battle Fire Engulfed Terror Island (USA) (1992)
  7. Geo Storm (Japan) (1994)
  8. Gun Force II (US) (1994)

Categories

History


Arcade Video game published 25 years ago:

Geo Storm (c) 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 originaly 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 -

1. Gun Force - Battle Fire Engulfed Terror Island (1991)
2. 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