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Arcade
Arcade
Platform:

Geostorm (Japan)

| 1994
Genre:
Style:
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Description:

Notes:
Release type:
Units produced: Irem
Controls/Input Device: Control(joy8way), Buttons(2)
Number of Players: 2
Rating:
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SoundMix: Mono
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MAME folder name: geostorm

Display: raster 320x240 @ 60.00Hz (60.00 pixclock)
Sound: 1 channels

Emulated in MAME via driver m92.c:
Status: good; Emulation: good
Graphic: good; Sound: good; Color: good
Palette size: 2048; Savestate: unsupported

Roms:
a2-h1-a.6f with 262144kb
sha1:3fd3cdf8acfa845abacb0708fb48741ee44dbf13 crc:34280b88
a2-l1-a.8f with 262144kb
sha1:fde3fd983ebb920f79e6898aa0576da9dd9f0c15 crc:c8c13f51
a2_000.8a with 1048576kb
sha1:cc5bacad9592aa5e91632b139955e1c704a67a33 crc:38e03147
a2_010.8b with 1048576kb
sha1:884f134ed51b432965a4e5e79915ba9c0ab562c6 crc:1d5b05f8
a2_020.8c with 1048576kb
sha1:04e91efc749d022c8012caac493767ec1f6a992d crc:f2f461cc
a2_030.8d with 1048576kb
sha1:71ddff85a8ddeac69863bbf6c493c5c3973fd175 crc:97609d9d
a2_c0.1a with 524288kb
sha1:fb935947cdde43e84453f82caeea141a4ae7226d crc:68b8f574
a2_c1.1b with 524288kb
sha1:1df4108d30d2538f6407e328513517cd3412321f crc:0b9efe67
a2_c2.3a with 524288kb
sha1:241dc310e75960e306701a2e86e30d9c1a60ebff crc:7a9e9978
a2_c3.3b with 524288kb
sha1:e9befc966e6ee046eaca185a9969976304a119d8 crc:1395ee6d
a2_da.1l with 1048576kb
sha1:d1f4186e8ddf99698443f8ee1c60a6e6bc367b09 crc:3c8cdb6a
a2_sh0.3l with 65536kb
sha1:6b663948f69218308d9ecdb677557b2db1dfbf5a crc:2e2d103d
a2_sl0.5l with 65536kb
sha1:755dab510915161428ed57ab18410c393e138e65 crc:2287e0b3
geo-h0.bin with 262144kb
sha1:ab98b91abc8129c342c59674eab9683cccc6ca35 crc:9be58d09
geo-l0.bin with 262144kb
sha1:52b48685470ffa3f36a8259bf333448bf40caea9 crc:59abb75d
Mameinfo.dat entry:
0.37b10 [Yochizo]


WIP:

- 0.147u2: hap fixed clone Omega Fighter Special. The game fails to boot or finish post. After showing bad rom errors, the game resets.

- 0.147u1: Fixed maincpu rom loading.

- 0.122u7: Fixed gfx1/2/3/4/5 rom loading.

- 0.89u3: Changed Z80 CPU2 clock speed to 5MHz.

- 0.37b10: Yochizo added 'Omega Fighter' (UPL 1989) and clone Omega Fighter Special.

- 21st November 2000: Yochizo fixed some graphics bugs in the Omega Fighter / Atomic Robo-kid driver.

- 8th November 2000: Yochizo sent in a driver for Omega Fighter and Atomic Robo-kid.

- 25th April 1999: Dumped Omega Fighter Special.


LEVELS: 8 (restarts once)


Other Emulators:

* FB Alpha

* JFF

* Raine


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Final Star Force

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Mars Matrix: Hyper Solid Shooting


Romset: 2016 kb / 8 files / 457.8 zip


Credits Mameinfo and Mametesters Project Robert J. Rabgno et al.
History.dat entry:
Geo Storm (c) 1994 Irem Corp.

A platform shooter that features incredible graphics and rock solid gameplay.

- 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.

This game is known in US as "Gun Force II".

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".

- SERIES -

1. Gun Force - Battle Fire Engulfed Terror Island (1991)
2. Geo Storm (1994)

- CONTRIBUTE -

Edit this entry: http://www.arcade-history.com/?&page=detail&id=946&o=2


Licensed from Alexis Bousiges under a CC Attribution 3.0 License
cheat.dat entry:
00000000 EA56A 00000099 FFFFFFFF Infinite Credits
00000000 E00A4 00000099 FFFFFFFF Infinite Time
00000703 E00B3 00000005 FFFFFFFF Select Next Mission The Last Mission (5) doesn't work properly as you need to enter it via Mission 4
60000000 00000 00000000 00000000
00000000 E9DAC 0000000A FFFFFFFF Infinite Lives PL1
00000000 E0230 000000E7 FFFFFFFF Infinite Item Ammo PL1 Get an item first
00010000 E0231 00000003 FFFFFFFF Infinite Item Ammo PL1 (2/2)
00000000 E0238 00000002 FFFFFFFF Invincibility PL1
60000000 00000 00000000 00000000
00000000 E9E2C 0000000A FFFFFFFF Infinite Lives PL2
00000000 E03E0 000000E7 FFFFFFFF Infinite Item Ammo PL2 Get an item first
00010000 E03E1 00000003 FFFFFFFF Infinite Item Ammo PL2 (2/2
00000000 E03E8 00000002 FFFFFFFF Invincibility PL2

Credit Pugsy's MAME Cheat file
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