chopper Chopper I (US set 1)

Immagine gioco: Chopper I (US set 1)
Available images:

Romset name:
Production year: 1988
Manufacturer: SNK

Game genre: Shooter
Category: Shooter / Flying Vertical

This machine has the following clones:
 • Chopper I (US set 2)
 • Chopper I (US set 3)
 • Koukuu Kihei Monogatari - The Legend of Air Cavalry (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: Not supported

In MAME since version: .035b08

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

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

    Z80 ("maincpu")cpu 4000000 Hz
    Z80 ("sub")cpu 4000000 Hz
    Z80 ("audiocpu")cpu 4000000 Hz
    Speaker ("mono")audio
    YM3812 ("ym1")audio 4000000 Hz
    Y8950 ("ym2")audio 4000000 Hz

  • Screens [Show details]

    This machine uses a single screen:
      Graphic type: Raster
      Screen orientation: Vertical
      Resolution 400 x 224 @ 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
    Bonus Life50k 100k 100k+
     75k 150k 150k+
     100k 200k 200k+
     50k 100k
     75k 150k
     100k 200k
    Flip ScreenOff
    Coin A4 Coins/1 Credit
     3 Coins/1 Credit
     2 Coins/1 Credit
     1 Coin/1 Credit
    Coin B1 Coin/2 Credits
     1 Coin/3 Credits
     1 Coin/4 Credits
     1 Coin/6 Credits
    Game ModeDemo Sounds Off
     Demo Sounds On
     Infinite Lives (Cheat)
    Allow ContinueNo
    Invulnerability (Cheat)Off

  • ROMs (25 of the machine set) [Show details]

    Referred to MAME version: 0.181

    NameSizeCRC32SHA1StatusIn romset
    kk_01.rom655368fa2f839 13cfdbeb433aa3e1dc7e7927c00690e02ed08274 good chopper
    kk_04.rom65536004f7d9a 4d1c830f69dbf2f1523f9ad7da9b3275fd6b5dfb good chopper
    kk_03.rom65536dbaafb87 e7d7f68250bda217230560481ba51da335fc05d7 good chopper
    up03_k1.rom10247f07a45c f751d01d9c25609195b19643395290dab8b8bc5c good chopper
    up03_l1.rom102415359fc3 4ced674fb18b80ebe5fd6459e0fb9542461dbc74 good chopper
    up03_k2.rom102479b50f7d 41579e498046570a6a74309310b5341fcde9c7de good chopper
    kk_05.rom32768defc0987 ea8eca852aadce90857eb8e65d78631409faac01 good chopper
    kk_10.rom655365cf4d22b b66864740898478becb188d7dd34d61187926e4d good chopper
    kk_11.rom655369af4cad0 dd8c1a76e6a90661c5442c0a096cb9ffe496d12a good chopper
    kk_12.rom6553602fec778 477a3e22f913cc7783d6cbfce86f98fea9eaf3ec good chopper
    kk_13.rom655362756817d acde21454ddf843425deff3357c9e3a7e7a2baec good chopper
    kk_09.rom32768653c4342 aacb3a7772dcea4c88f0010b3654f4159cfb6a8b good chopper
    kk_08.rom327682da45894 09f1ac544a119c9d3a9eeb0606f35585d35c2d1d good chopper
    kk_07.rom32768a0ebebdf 83d8a9ba7b7ffd42e50afb017e4d0d40fe3e2739 good chopper
    kk_06.rom32768284fad9e 7bb572d7d5983a514e8381954ac89a720b86e9ba good chopper
    kk_18.rom655366abbff36 8dde3163e454876a4b666b25c81c09b0740143b5 good chopper
    kk_19.rom655365283b4d3 980f74d3f468203cf9c1a5f3bc256139975035f3 good chopper
    kk_20.rom655366403ddf2 54a044d9a1ba89fec3bea0e771f75fcc532e7aad good chopper
    kk_21.rom655369f411940 73b0bd360a76ab183f8c7b41f78e930e49e2600c good chopper
    kk_14.rom655369bad9e25 0eb1e23dc7084172dd19927a1b084101d10b5137 good chopper
    kk_15.rom6553689faf590 876fc6dac48fef396670522470c41fc9d9b6a0b2 good chopper
    kk_16.rom65536efb1fb6c 12edd64e29472f3c6822f957b23547c64dab65d2 good chopper
    kk_17.rom655366b7fb0a5 805ee6f439d9e921e1ece27438ba9c00b870e305 good chopper
    kk_02.rom6553606169ae0 2690ce7cb28cf5c6d37886ce5fbe444067c08403 good chopper
    pal16r6b.2c260311e5ae6 8a3799e1611ac4086dda2755c5ad44c0dc16ff5b good chopper

    :  PARENT Machine
    :  CLONE Machine
    :  BIOS
    :  Device


Chopper I (c) 1988 SNK.

A vertically scrolling helicopter shoot'em up.


Game ID : A7003 'KK'

Main CPU : (2x) Z80 (@ 4 Mhz)

Sound CPU : Z80 (@ 4 Mhz)

Sound Chips : YM3812 (@ 4 Mhz), Y8950 (@ 4 Mhz)

Players : 2

Control : 8-way joystick

Buttons : 2


Released in June 1988.

This game is known in Japan as "Koukuu Kihei Monogatari - The Legend of Air Cavalry".


Supervisor : Eikichi Kawasaki

Producer : Tamadachi

Programmer : SNK Jr.

Designers : Okitaka, Madaka, Warasan

Sound creater : Kanata

Adviser : Tosikita


Game's rom.

Machine's picture.

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 chopper

0.35b8 [Carlos A. Lozano, Phil Stroffolino]


- To enter service mode hold F2 during ROM test.


- 0.127u7: Stephane Humbert checked inputs and dipswitches via Z80 code analysis for Chopper I and clones.

- 0.127u1: SNK rewrite [Nicola Salmoria]: Fixed sprite-sprite priorities. Converted to tilemaps, proper memory map, fixed input and added DIP locations etc. Changed visible area to 224x392.

- 0.126u5: Fixed gfx3 rom addresses to $8000/10000/18000.

- 0.106u12: MASH added pld ($0 - pal16r6b.2c) to Chopper I and clones (US set 2) and (US set 3).

- 0.69: Added clones Chopper I (US set 2) and (US set 3). Changed parent description to 'Chopper I (US set 1)'.

- 0.67: Changed description to 'Chopper I (US)' and clone to 'Koukuu Kihei Monogatari - The Legend of Air Cavalry (Japan)'.

- 17th September 2002: Robert Hunt added an alternate Chopper I version to the SNK driver.

- 0.36b4: Changed description of clone to 'Koukuu Kihei Monogatari - The Legend of Air Cavalry'.

- 0.35b12: Changed input from 4 to 2 buttons.

- 0.35b11: Changed visible area to 224x384 and palettesize to 16 colors.

- 0.35b9: Fixed rom loading.

- 0.35b8: Carlos A. Lozano and Phil Stroffolino added Chopper I (SNK 1988) and clone 'The Legend of Air Cavalry'.

LEVELS: 6 (repeats once)

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