kyros Kyros

Immagine gioco: Kyros
Available images:

Romset name:
Production year: 1987
Manufacturer: Alpha Denshi Co. (World Games Inc. license)

Game genre: Fighter
Category: Fighter / Vertical

This machine has the following clones:
 • Kyros No Yakata (Japan)

This machine works in MAME This machine works in MAME

Overall emulation: Good
Color emulation: Good
Sound emulation: Good
Graphics emulation: Good
Save states: Supported

In MAME since version: .037b02

The MAME driver of this machine is: alpha68k.cpp - Read the code

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

    M68000 ("maincpu")cpu 6000000 Hz
    Z80 ("audiocpu")cpu 4000000 Hz
    Speaker ("speaker")audio
    YM2203 ("ym1")audio 2000000 Hz
    YM2203 ("ym2")audio 2000000 Hz
    YM2203 ("ym3")audio 2000000 Hz
    8-Bit R-2R DAC ("dac")audio

  • Screens [Show details]

    This machine uses a single screen:
      Graphic type: Raster
      Screen orientation: Vertical
      Resolution 256 x 224 @ 60.191409 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
    Demo SoundsOff
    CoinageA 1C/1C B 1C/1C
     A 1C/2C B 2C/1C
     A 1C/3C B 3C/1C
     A 1C/4C B 4C/1C
     A 1C/5C B 5C/1C
     A 1C/6C B 6C/1C
     A 2C/3C B 7C/1C
     A 3C/2C B 8C/1C

  • ROMs (26 of the machine set) [Show details]

    Referred to MAME version: 0.181

    NameSizeCRC32SHA1StatusIn romset
    2.10c327684bd030b1 e503dae8e12995ab0a551022a848a62315908e8b good kyros
    1.13c3276875cfbc5e 2a70c56fd7192279157df8294743038a7ed7e68d good kyros
    4.10b32768be2626c2 c3b01ec4b65172560a993b37421df6a61b780e43 good kyros
    3.13b32768fb25e71a fab8fcbd2c5a8600d6e8577de4875e409cad723b good kyros
    2s.1f16384800ceb27 4daa1b8adcad7a90cfd5d20704a7c431673c4995 good kyros
    1s.1d3276887d3e719 4b8b1b600c7c1de3a77030001e7e6f0ff118f294 good kyros
    kyros_68705u3.bin4096c20880b7 b041c36cbc4f348d74e0548df5cb14727f2d353b good kyros
    kyros_mcu.bin20483a902a19 af1be8894c899b27b1106663ffaf2ab43fa1cdaa good kyros
    8.9pr32768c5290944 ec97482dc59220002780ae4d02be4cd172cf65ac good kyros
    11.11m32768fbd44f1e d095544ea76674a7ad17c1b8c88614e65890281c good kyros
    12.11n3276810fed501 71c0b4b94f86046745105307938f6e2c5661e2a1 good kyros
    9.9s32768dd40ca33 91a1d8b6b69fb0d27ed315cd2591f352360bc8e7 good kyros
    13.11p32768e6a02030 0de58f8cc69dc76d4b0a45fba04972634a4021a6 good kyros
    14.11r32768722ad23a 0e1be976c5a406e33236def5a0dce73911ebac28 good kyros
    15.3t32768045fdda4 ac25368e446e6dcfb3ed244e7d6d699f917c202d good kyros
    17.7t327687618ec00 7346ba41fd2b04e404225726ede2e42e62ca7901 good kyros
    18.9t327680ee74171 1fda8a1066eb7dafeaeffebfe718b408b34f1767 good kyros
    16.5t327682cf14824 07f6b232c4ca6c42b3f75443b0328653f5a3f71d good kyros
    19.11t327684f336306 83e0c021d2732d3199c70ac433a31863075a5a72 good kyros
    20.13t32768a165d06b ef7f38a71c2f3fc836b28f0eac1c14a3877f0802 good kyros
    mb7114l.5r2563628bf36 33b7b873a6e5da59f535d754f8c8257c0f4d0a31 good kyros
    mb7114l.4r256850704e4 8a9da9efc7bc6a037d4cd27152b853a7839ccd67 good kyros
    mb7114l.6r256a54f60d7 af039dee847913cb79f85d7abf4846322bba2e5b good kyros
    mb7114l.5p2561cc53765 2b665f3e24ddb3ab591273f027ff7740f1c97e27 good kyros
    mb7114l.6p256b0d6971f 4aa2e9a89f9ea7487433e54ef4aa95a632477c4f good kyros
    0.1t81925d0acb4c 52fcdcb2bf6d6ada04aa447b5526c39848bf587f good kyros

    :  PARENT Machine
    :  CLONE Machine
    :  BIOS
    :  Device


Kyros (c) 1987 Alpha Denshi.

A vertically scrolling beat-em-up where you fight against monsters.


Main CPU : 68000 (@ 6 Mhz)

Sound CPU : Z80 (@ 3.579545 Mhz)

Sound Chips : (3x) YM2203 (@ 3 Mhz), DAC

Screen orientation : Vertical

Video resolution : 224 x 256 pixels

Screen refresh : 60.00 Hz

Palette colors : 256

Players : 2

Control : 8-way joystick

Buttons : 2


Released in May 1987.

Licensed to World Games for manufacture and distribution.

This game is known in Japan as "Kyros no Yakata" (released in 1986).


Programmers : Akira Kobayasi, Hiroyuki Ryu, Hideo Samoda

Sound : Satoshi Hagitani

Designers : Pop House, Keniti Sakanishi

Producer : Hatsue Honba

Ochya Kumi : Tomoharu

Lunch : Wakana


* Computers :

Amstrad CPC (1986, "Desolator")

Atari ST (1986, "Desolator")

Commodore C64 (1988, "Desolator")

Sinclair ZX Spectrum (1988, "Desolator")


Game's rom.

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Chiudi Lista

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 kyros

0.37b2 [Bryan McPhail]

0.36b1 [Bryan McPhail]


- kyros, kyrosj: [possible] Sound is partially missing. Ash (ID 02868)

- [possible] There seem to be two graphical problems on the last level of the game (stage 5). Darkk (ID 01148)

- [possible] During the ending sequence, the characters' sprites seem to cover the text (priority bug?). Darkk (ID 01149)


- 0.140u3: Corrado Tomaselli changed Kyros clocks to match bootleg PCB. Changed Z80 CPU1 clock speed to 4MHz and the 3x YM2203 to 2MHz.

- 8th December 2010: Corrado Tomaselli dumped Kyros No Yakata (Japan) (bootleg 1987). Note: MCU 68705U3S not dumped. All other roms are from Japanese set.

- 0.138u4: Kyros now load (but don't yet use) the decapped MCUs (kyros_68705u3.bin and kyros_mcu.bin) [Dr. Decapitator].

- 0.138u3: hap fixed a white noise which lasts throughout the game once you throw a punch.

- 27th June 2010: Guru - The HD6805U1 MCU for Kyros has now been successfully processed (decap, de-protect & read).

- 25th June 2010: Guru - The 68705U3 MCU for Kyros has now been successfully processed (decap, de-protect & read).

- 0.126u4: Guru added README for Kyros No Yakata.

- 30th July 2008: Guru - Kyros chips arrived to be decapped, thanks to Dox.

- 0.122u8: Changed palettesize to 257 colors.

- 0.84: Pierpaolo Prazzoli added cocktail support to Kyros.

- 0.69a: David Haywood added clone Kyros No Yakata (Japan).

- 25th May 2003: Guru - Received Kyros No Yakata (Alpha Denshi 1986). Thanks to MAMEworld donations.

- 0.61: Removed 3rd button.

- 0.59: Acho A. Tang fixed Super Stingray and Kyros, and most problems in Gold Medalist. Fixed color, added sound and coin handler, corrected DIP settings. Replaced the 2x AY-8910 sound with 2x YM2203 (3MHz) and DAC. Fixed cpu2 rom address ($4000) and changed cpu2 rom ($18000) to user1 ($0). Added dipswitches 'Demo Sounds', 'Coinage', 'Difficulty' and 'Cabinet'.

- 18th March 2002: Acho A. Tang submitted a massive update for the Alpha68k driver, fixing a few graphics problems in Sky Adventure and Time Soldiers, and making Paddle Mania, Super Stingray and Kyros playable.

- 0.37b2: Bryan McPhail added Kyros (World Games Inc 1987).

- 30th April 2000: Nicola Salmoria improved the Kyros and Super Stingray colors a bit.

- 26th April 2000: Bryan McPhail sent in a big Alpha68k driver update, with support for Kyros, Super Champion Baseball, Super Stingray, the original version of Gang Wars and two new sets of Time Soldiers.

- 18th April 2000: Phil Stroffolino fixed some tilemap bugs and he fixed Kyros' graphics decoding.

- 0.36b1: Bryan McPhail added Kyros (Testdriver).


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