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spiders2: MAME ROM Information.


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.

MAME Info:

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 an dVSync 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)

Recommended Games:

Frog & Spiders


Black Widow


Recommended Games (Space Shooter 2):

Devil Zone

Killer Comet



Radar Scope

Space Firebird

Zero Hour

Astro Blaster

Astro Fantasia (DECO Cassette)

Black Hole


Laser Battle

Red Clash

Satan of Saturn

Space Cruiser


Azurian Attack

Battle Cross


Sky Base

Space Raider



Juno First

Mad Planets


Halley's Comet

Sky Fox

Star Fighter

Space Bomber

Romset: 46 kb / 12 files / 24.5 zip

MAME XML Output:

       <game name="spiders2" sourcefile="spiders.c" cloneof="spiders" romof="spiders">
              <description>Spiders (set 2)</description>
              <manufacturer>Sigma Enterprises Inc.</manufacturer>
              <rom name="sp-ic74" merge="sp-ic74" size="4096" crc="6a2578f6" sha1="ddfe4fb2ccc925df7ae97821f8681b32e47630b4" region="maincpu" offset="c000"/>
              <rom name="sp2.bin" size="4096" crc="cf71d12b" sha1="369e91f637e8cd898354ddee04e24d4894968f79" region="maincpu" offset="d000"/>
              <rom name="sp-ic72" merge="sp-ic72" size="4096" crc="464125da" sha1="94e9edd52e8bd72bbb5dc91b0aa11955e940799c" region="maincpu" offset="e000"/>
              <rom name="sp4.bin" size="4096" crc="f3d126bb" sha1="ecc9156a7da661fa7543d7656aa7da77274e0842" region="maincpu" offset="f000"/>
              <rom name="sp-ic3" merge="sp-ic3" size="2048" crc="944d761e" sha1="23b1f9234e0de678e96d1a6876d8d0a341150385" region="audiocpu" offset="f800"/>
              <rom name="sp-ic33" merge="sp-ic33" size="4096" crc="b6731baa" sha1="b551030df417b40f4a8488fc82a8b5809d3d32f6" region="gfx1" offset="0"/>
              <rom name="sp-ic25" merge="sp-ic25" size="4096" crc="baec64e7" sha1="beb45e2e6270607c14cdf964c08fe320ce8236a0" region="gfx1" offset="1000"/>
              <rom name="sp-ic24" merge="sp-ic24" size="4096" crc="a40a5517" sha1="3f524c7dbbfe8aad7860d15c38d2702732895681" region="gfx1" offset="2000"/>
              <rom name="sp-ic23" merge="sp-ic23" size="4096" crc="3ca08053" sha1="20c5709d9650c426b91aed5318a9ab0a10009f17" region="gfx1" offset="3000"/>
              <rom name="sp-ic22" merge="sp-ic22" size="4096" crc="07ea073c" sha1="2e57831092730db5fbdb97c2d78d8842868906f4" region="gfx1" offset="4000"/>
              <rom name="sp-ic21" merge="sp-ic21" size="4096" crc="41b344b4" sha1="c0eac1e332da1eada062059ae742b666051da76c" region="gfx1" offset="5000"/>
              <rom name="sp-ic20" merge="sp-ic20" size="4096" crc="4d37da5a" sha1="37567d19596506385e9dcc7a7c0cf65120189ae0" region="gfx1" offset="6000"/>
              <chip type="cpu" tag="maincpu" name="M6809" clock="2800000"/>
              <chip type="cpu" tag="audiocpu" name="M6802" clock="3000000"/>
              <chip type="audio" tag="mono" name="Speaker"/>
              <chip type="audio" tag="discrete" name="DISCRETE"/>
              <display tag="screen" type="raster" rotate="270" width="256" height="256" refresh="85.449219" pixclock="5600000" htotal="256" hbend="0" hbstart="256" vtotal="256" vbend="0" vbstart="256" />
              <sound channels="1"/>
              <input players="2" buttons="1" coins="1" service="yes">
                     <control type="joy" ways="2"/>
              <dipswitch name="Coinage" tag="DSW1" mask="7">
                     <dipvalue name="2 Coins/1 Credit" value="1"/>
                     <dipvalue name="1 Coin/1 Credit" value="7" default="yes"/>
                     <dipvalue name="4 Coins/5 Credits" value="6"/>
                     <dipvalue name="1 Coin/2 Credits" value="4"/>
                     <dipvalue name="1 Coin/3 Credits" value="2"/>
                     <dipvalue name="Free Play" value="0"/>
              <dipswitch name="Play Mode" tag="DSW2" mask="3">
                     <dipvalue name="A A'" value="0"/>
                     <dipvalue name="A B'" value="1"/>
                     <dipvalue name="B A'" value="2"/>
                     <dipvalue name="B B'" value="3" default="yes"/>
              <dipswitch name="Spiders to Complete Belt" tag="DSW2" mask="12">
                     <dipvalue name="14" value="0"/>
                     <dipvalue name="16" value="12" default="yes"/>
                     <dipvalue name="20" value="4"/>
                     <dipvalue name="26" value="8"/>
              <dipswitch name="Lives" tag="DSW2" mask="16">
                     <dipvalue name="3" value="16" default="yes"/>
                     <dipvalue name="4" value="0"/>
              <dipswitch name="Bonus Life" tag="DSW2" mask="96">
                     <dipvalue name="None" value="0"/>
                     <dipvalue name="15K" value="96" default="yes"/>
                     <dipvalue name="20K" value="32"/>
                     <dipvalue name="25K" value="64"/>
              <dipswitch name="Giant Spiders" tag="DSW2" mask="128">
                     <dipvalue name="First Screen" value="0" default="yes"/>
                     <dipvalue name="Every Screen" value="128"/>
              <dipswitch name="Flip Screen" tag="DSW3" mask="1">
                     <dipvalue name="Off" value="0" default="yes"/>
                     <dipvalue name="On" value="1"/>
              <dipswitch name="Cabinet" tag="DSW3" mask="2">
                     <dipvalue name="Upright" value="0" default="yes"/>
                     <dipvalue name="Cocktail" value="2"/>
              <dipswitch name="Vertical Adjust" tag="DSW3" mask="28">
                     <dipvalue name="0" value="0" default="yes"/>
                     <dipvalue name="1" value="4"/>
                     <dipvalue name="2" value="8"/>
                     <dipvalue name="3" value="12"/>
                     <dipvalue name="4" value="16"/>
                     <dipvalue name="5" value="20"/>
                     <dipvalue name="6" value="24"/>
                     <dipvalue name="7" value="28"/>
              <dipswitch name="Horizontal Adjust" tag="DSW3" mask="224">
                     <dipvalue name="0" value="0" default="yes"/>
                     <dipvalue name="1" value="32"/>
                     <dipvalue name="2" value="64"/>
                     <dipvalue name="3" value="96"/>
                     <dipvalue name="4" value="128"/>
                     <dipvalue name="5" value="160"/>
                     <dipvalue name="6" value="192"/>
                     <dipvalue name="7" value="224"/>
              <driver status="imperfect" emulation="good" color="good" sound="imperfect" graphic="good" savestate="supported" palettesize="0"/>

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