msisaac Metal Soldier Isaac II

Immagine gioco: Metal Soldier Isaac II
Available images:

Romset name:
Production year: 1985
Manufacturer: Taito Corporation

Game genre: Shooter
Category: Shooter / Misc. Vertical

This machine works in MAME with problems This machine works in MAME with problems

Overall emulation: Good
Color emulation: Good
Sound emulation: Good
Graphics emulation: Good
Save states: Supported
Cocktail mode emulation: Preliminary
Protection emulation: Preliminary

In MAME since version: .068

The MAME driver of this machine is: msisaac.cpp - Read the code

 Tech info 
 Hardware of this machine:
  • CHIPs [Show details]

    Z80 ("maincpu")cpu 4000000 Hz
    Z80 ("audiocpu")cpu 4000000 Hz
    Speaker ("mono")audio
    AY-3-8910A ("ay1")audio 2000000 Hz
    AY-3-8910A ("ay2")audio 2000000 Hz
    MSM5232 ("msm")audio 2000000 Hz

  • Screens [Show details]

    This machine uses a single screen:
      Graphic type: Raster
      Screen orientation: Vertical
      Resolution 256 x 240 @ 60.000000 Hz

  • Number of players: 2P Alternated
  • Controllers [Show details]

      Joystick [8 ways]
      Joystick [8 ways]
    Number of buttons: 2

  • Dip-switches [Show details]

    Default settings in bold
    DSW1 Unknown 0Off
    DSW1 Unknown 1Off
    Free PlayOff
    DSW1 Unknown 5Off
    DSW1 Unknown 6Off
    DSW1 Unknown 7Off
    Coin A9 Coins/1 Credit
     8 Coins/1 Credit
     7 Coins/1 Credit
     6 Coins/1 Credit
     5 Coins/1 Credit
     4 Coins/1 Credit
     3 Coins/1 Credit
     2 Coins/1 Credit
     1 Coin/1 Credit
     1 Coin/2 Credits
     1 Coin/3 Credits
     1 Coin/4 Credits
     1 Coin/5 Credits
     1 Coin/6 Credits
     1 Coin/7 Credits
     1 Coin/8 Credits
    Coin B9 Coins/1 Credit
     8 Coins/1 Credit
     7 Coins/1 Credit
     6 Coins/1 Credit
     5 Coins/1 Credit
     4 Coins/1 Credit
     3 Coins/1 Credit
     2 Coins/1 Credit
     1 Coin/1 Credit
     1 Coin/2 Credits
     1 Coin/3 Credits
     1 Coin/4 Credits
     1 Coin/5 Credits
     1 Coin/6 Credits
     1 Coin/7 Credits
     1 Coin/8 Credits
    Demo SoundsOff
    DSW3 Unknown 100
    Invulnerability (Cheat)Off
    DSW3 Unknown 300
    Copyright Notice(C) 1985 Taito Corporation
     (C) Taito Corporation
     (C) Taito Corp. MCMLXXXV
     (C) Taito Corporation
    Coinage DisplayInsert Coin
    CoinageA and B
     A only

  • ROMs (14 of the machine set) [Show details]

    Referred to MAME version: 0.181

    NameSizeCRC32SHA1StatusIn romset
    a34_11.bin1638440819334 65352607165043909a09e96c07f7060f6ce087e6 good msisaac
    a34_12.bin163844c50b298 5962882ad37ba6990ba2a6312b570f214cd4c103 good msisaac
    a34_13.bin163842e2b09b3 daa715282ed9ef2e519e252a684ef28085becabd good msisaac
    a34_10.bin8192a2c53dc1 14f23511f92bcfc94447dabe2826555d68bc1caa good msisaac
    a34_01.bin16384545e45e7 18ddb1ec8809bb62ae1c1068cd16cd3c933bf6ba good msisaac
    a34.mcu2048  nodump msisaac
    a34_02.bin819250da1a81 8aa5a896f3e1173155d4574f5e1c2703e334cf44 good msisaac
    a34_03.bin8192728a549e 8969569d4b7a3ba7b740dbd236c047a46b723617 good msisaac
    a34_04.bin8192e7d19f1c d55ee8085256c1f6a254d3249997326eebba7d88 good msisaac
    a34_05.bin8192bed2107d 83b16ca8a1b131aa6a2976cdbe907109750eaf71 good msisaac
    a34_06.bin81924ec71687 e88f0c61a172fbca1784c95246776bf64c071bf7 good msisaac
    a34_07.bin819224922abf e42b4947b8c84bdf62990205308b8c187352d001 good msisaac
    a34_08.bin81923ddbf4c0 7dd82aba661addd0a905bc185c1a6d7f2e21e0c6 good msisaac
    a34_09.bin819223eb089d fcf48862825bf09ba3718cbade0e163a660e1a68 good msisaac

    :  PARENT Machine
    :  CLONE Machine
    :  BIOS
    :  Device


Metal Soldier Isaac II (c) 1985 Taito.


Prom Stickers : A34

Main CPU : Z80

Sound CPU : Z80

Sound Chips : (2x) AY8910, MSM5232

Players : 2

Control : 8-way joystick

Buttons : 2


Released in February 1985 in Japan.

Metal Soldier Isaac II does NOT have a predecessor. The original prototype of this game was simply Metal Soldier Isaac and was called Metal Soldier Isaac II for its formal arcade release.

The music for the attract mode was remixed, then reused for the first stage of "Darius".


Program : Hirozaku Miyano

Assnt : Naoto Yagishita

Design : Junji Yarita , Masayuki Suzuki

Sound : Tadashi Kimijima , Hisayoshi Ogura


* Consoles :

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


Game's rom.

Giochi Simili

Warning: information in history.dat can differ from the ones present in the rest of the page (taken from MAME) as they come from a different source

Information on msisaac

0.68 [Jarek Burczynski, Angelo Salese]

0.57 [Jarek Burczynski]


* Dump M68705 MCU


- 0.149u1: Modernized the buggychl_mcu device [Osso].

- 0.145u8: Phil Bennett removed some obsolete size members from msisaac_state (includes\msisaac.h).

- 0.140u2: Atari Ace take some driver_device classes of 40love/bking/buggychl/msisaac (common code in machine\buggychl.c) that cover multiple drivers and split them so that each driver gets their own driver_device class. In most cases, these drivers got entangled because of audio/mcu code that was shared between multiple drivers.

- 0.135u3: Fabio Priuli added shared driver data struct to Buggy Challenge and Metal Soldier Isaac II (they use the same MCU emulation).

- 0.131u1: Angelo Salese merged memory maps in the Metal Soldier Isaac II driver.

- 0.69a: Jarek Burczynski removed analog input definition and encoded it directly from Joystick input in Metal Soldier Isaac II. Changed Dial input to 8-way Joystick.

- 29th May 2003: Jarek Burczynski improved the MCU simulation in Metal Soldier Isaac II to mimic the original hardware better.

- 0.68: Jarek Burczynski and Angelo Salese added Metal Soldier Isaac II (Taito 1985).

- 4th May 2003: Angelo Salese submitted MCU simulations to The Legend of Kage and Metal Soldier Isaac II.

- 0.57: Jarek Burczynski added Metal Soldier Isaac II (Testdriver). TODO: Sprites are probably banked differently (no way to be sure until MCU dump is available). TA7630 emulation needs filter support (characteristics depend on the frequency). TA7630 volume table is hand tuned to match the sample, but still slighty off.

- 21st October 2001: Jarek Burczynski sent in the Metal Soldier Isaac II driver, which is unplayable due to a missing MCU dump.

- 18th September 2001: Jarek Burczynski fixed Metal Soldier Isaac II sound CPU interrupt problem.

- 14th September 2001: Jarek Burczynski sent in some preliminary screenshots of Metal Soldier Isaac II.

- 23rd May 1999: J-ROM dumped Metal Soldier Isaac II (c)1985 TAITO.

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