Spiders (set 3)

Immagine gioco: Spiders (set 3)
Available images:

Romset name: spiders3.zip
Production year: 1981
Manufacturer: Sigma Enterprises Inc.

Game genre: Shooter
Category: Shooter / Gallery

This machine is a clone of:
 • Spiders (set 1)

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

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

In MAME since version: .136u3

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

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

    M6809 ("maincpu")cpu 2800000 Hz
    M6802 ("audiocpu")cpu 3000000 Hz
    Speaker ("mono")audio
    DISCRETE ("discrete")audio

  • Screens [Show details]

    This machine uses a single screen:
      Graphic type: Raster
      Screen orientation: Vertical
      Resolution 256 x 256 @ 85.449219 Hz

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

      Joystick [2 ways]
      Joystick [2 ways]
    Number of buttons: 1

  • Dip-switches [Show details]

    Default settings in bold
    Coinage2 Coins/1 Credit
     1 Coin/1 Credit
     4 Coins/5 Credits
     1 Coin/2 Credits
     1 Coin/3 Credits
     Free Play
    Play ModeA A'
     A B'
     B A'
     B B'
    Spiders to Complete Belt14
    Bonus LifeNone
    Giant SpidersFirst Screen
     Every Screen
    Flip ScreenOff
    Vertical Adjust0
    Horizontal Adjust0

  • ROMs (5 of the parent set, 7 of the clone set) [Show details]

    Referred to MAME version: 0.181

    NameSizeCRC32SHA1StatusIn romset
    sp-ic74.bin4096ed6b5dcd 551fecb9adbab5cb5ac07fb27cc1fcfa03b5e832 good spiders3
    sp-ic73.bin4096bc04f779 a6366461a120d978b27470dad34a2270aee71428 good spiders3
    sp-ic72.bin4096c7dd097d c7802ac33c1a67ffcb1891e74f0e43483f5b1016 good spiders3
    sp-ic71.bin4096593b43c4 f0cf06a22be205f00a9d52f766c3aae1985f0090 good spiders3
    sp-ic3.bin2048153adee7 45dbd756adb5d75562b066fc152c0af7925052de good spiders3
    sp-ic33.bin40967209dacd 142de81c013f4074a8eaedc5cd7e9498e6910eb9 good spiders3
    sp-ic25.bin4096d3d06722 da510ed162e5c310945123c9ce6d5648c7b0ae48 good spiders3
    sp-ic244096a40a5517 3f524c7dbbfe8aad7860d15c38d2702732895681 good spiders
    sp-ic2340963ca08053 20c5709d9650c426b91aed5318a9ab0a10009f17 good spiders
    sp-ic22409607ea073c 2e57831092730db5fbdb97c2d78d8842868906f4 good spiders
    sp-ic21409641b344b4 c0eac1e332da1eada062059ae742b666051da76c good spiders
    sp-ic2040964d37da5a 37567d19596506385e9dcc7a7c0cf65120189ae0 good spiders

    :  PARENT Machine
    :  CLONE Machine
    :  BIOS
    :  Device


Spiders (c) 1981 Venture Line, Inc.


Main CPU : M6809 (@ 2.8 Mhz)

Sound CPU : M6802 (@ 3 Mhz)

Sound Chips : Discrete circuitry

Players : 2

Control : move left, move right buttons

Buttons : 1


Released in December 1981 in the USA by Venture Line under license from the Japanese company Sigma Enterprises.

A bootleg of this game of known as "Spinner".


* Others :

VFD portable game (1982) by Entex.


Game's rom.

Machine's picture.

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 spiders

0.35b11 [Nicola Salmoria]

0.33b5 [Keith Wilkins]

Artwork available


- 0.141u4: hap fixed high tone never stop playing in Spiders and clones.

- 0.140u1: Derrick Renaud optimized speed of DISCRETE_DAC_R1.

- 6th September 2010: Mr. Do - Spiders bezel is done, again, for real this time, though. Vectored by Jcroach, from a scan by TrevEB.

- 0.136u4: MASH fixed a bug in emu\sound\disc_mth.c. This affected/fixed Spiders fire sound.

- 0.136u3: Team Europe added clone Spiders (set 3).

- 9th July 2008: Mr. Do - Got a better picture of a Spiders bezel from Bobby Tribble, which Jcroach vectored.

- 21st January 2008: Mr. Do - I have a correct cabinet picture of the Spiders bezel thanks to Bobby Tribble. This should be fixed soon.

- 0.115u3: Zsolt Vasvari fixed PIA numbers in revamped Spiders driver.

- 0.115u2: Zsolt Vasvari changed the CRTC6845 emulator to optionally control the screen configuration and video rendering. Updated the Qix and Spiders driver to use the new functionality. Added notifications for when the display enable pin changes in order to drive blanking signals. Changed visible area to 256x256 and VSync to 85.449219 Hz.

- 0.115u1: Zsolt Vasvari significantly cleaned up the Spiders driver.

- 0.113u1: Justin Szczap added DIP locations based on information from the manuals for Spiders.

- 0.101u4: Aaron Giles fixed black screen in Spiders.

- 0.99u6: Hans Andersson added discrete sound effects to Spiders with schematics from Don Maeby.

- 0.99u1: Hans Andersson fixed bug in Spiders that caused bad video in cocktail mode. Changed M6802 CPU2 clock speed to 3MHz. Added 2nd Player.

- 0.96u4: Fixed PS1 (Crosshatch) dipswitch.

- 0.83: Justin Szczap added NVRAM to Spiders.

- 0.80u2: Pierpaolo Prazzoli added clone Spinner (bootleg 1981).

- 0.55: Added M6802 CPU2 (750000 Hz).

- 0.35b11: Nicola Salmoria added Spiders (set 1). Changed 'Spiders' to clone '(set 2)'. Renamed (spiders) to (spiders2).

- 0.33b5: Keith Wilkins added Spiders (Sigma 1981). Spiders has a fully bitmapped display and all sprite drawing is handled by the CPU hence no gfxdecode is done on the sprite ROMS, the CPU accesses them via PIA2. Screen is arranged in three memory areas with three bits being combined from each area to produce a 3bit colour send directly to the screen.

- 29th April 1998: Mike Coates dumped Spiders (set 2).

LEVELS: 1 (endless)

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