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starjacks: MAME ROM Information.


Star Jacker (c) 1983 Sega.

Star Jacker is an early vertical scrolling shooter with some interesting characteristics. The player starts out with three fighters with all of the fighters moving and shooting at the same time. Two fighters trail the lead fighter. Star Jacker features a similar scheme with the Namco game Xevious in that the fighters shoot at enemy fighters in the air while dropping bombs on enemies and targets on the ground level.

When any of the fighters is killed, the game momentarily pauses and re-centers the player fighters before continuing at the same point. The game is over when all of the player's fighters are destroyed. Star Jacker allows no continues.


Sega System 1 hardware

Game ID : 834-5191

Main CPU : Z80 (@ 4 Mhz)

Sound CPU : Z80 (@ 4 Mhz)

Sound Chips : SN76496 (@ 4 Mhz), SN76496 (@ 2 Mhz)

Screen orientation : Vertical

Video resolution : 224 x 240 pixels

Screen refresh : 60.00 Hz

Palette colors : 1536

Players : 2

Control : 8-way joystick

Buttons : 2


Released during July 1983.

Also licensed to Stern.

The initials on the high score screen spell out 'Star Jacker' (5x2 letters).


Hardwork by : Hideki Sato

Secured by : Masatoshi Mizunaga

Programmed by : Hirohi Nakayama, Katsuya Kazihara, Katsunori Kanazawa

Designed by : Eiro Nagata, Shozo Takihi

Sound by : Hideo Kume

Creator : Takaya Ida


* Consoles :

Sega SG-1000 (1983)

Sega Saturn (1997, "Sega Memorial Selection Vol.2")


Game's rom.

MAME Info:

0.34b1 [Nicola Salmoria]


- The Stern version (starjacs) allows to play both in "multi" and "single" mode. The Sega version is hardcoded for "multi" mode.


- 0.138u1: Changed description of clone 'Star Jacker (Stern)' to 'Star Jacker (Stern Electronics)'.

- 0.130u3: Sega System 1/2 rewrite [Aaron Giles]: Fixed Star Jacker (side-by-side test). Renamed (starjacs) to (starjacks).

- 0.115u4: Replaced SN76496 sound with SN76489.

- 0.87u2: Fixed rom names and added new gfx2 rom in clone Star Jacker (Stern).

- 0.56: Fixed rom names.

- 8th March 1999: Juergen Buchmueller improved the Z80 core (regulus & starjack work again).

- 0.34b3: Juan Carlos Lorente added high score saving to Star Jacker.

- 0.34b1: Nicola Salmoria added Star Jacker (Sega) (1983) and clone (Stern). Note: The Stern version allows to play both in "multi" and "single" mode. The Sega version is hardcoded for "multi" mode. Known issues: Sprites in the Stern version might be wrong, MAME using the roms from the Sega version because the other ones were bad.

- 13th April 1998: Malcor dumped Star Jacker (Sega).

LEVELS: 1 (endless)

Other Emulators:

* FB Alpha

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Romset: 137 kb / 16 files / 46.4 zip

MAME XML Output:

       <game name="starjacks" sourcefile="system1.c" cloneof="starjack" romof="starjack">
              <description>Star Jacker (Stern Electronics)</description>
              <manufacturer>Sega (Stern Electronics license)</manufacturer>
              <rom name="a1_ic29.129" size="8192" crc="59a22a1f" sha1="4827b537f8df04429ed53c2119c67a32efcf04a2" region="maincpu" offset="0"/>
              <rom name="a1_ic30.130" size="8192" crc="7f4597dc" sha1="7574853fc2e38880f8493cf628100a890f7aa7dc" region="maincpu" offset="2000"/>
              <rom name="a1_ic31.131" size="8192" crc="6074c046" sha1="5d2bd679d6a13a6c3b203662ce5496b801383db9" region="maincpu" offset="4000"/>
              <rom name="a1_ic32.132" size="8192" crc="1c48a3fa" sha1="4a2e7798600bc4a5fd68533083547212d148d347" region="maincpu" offset="6000"/>
              <rom name="a1_ic33.133" size="8192" crc="7598bd51" sha1="0c18b83dc7874aefcd94593ffbe2b50cc0329367" region="maincpu" offset="8000"/>
              <rom name="a1_ic34.134" size="8192" crc="f66fa604" sha1="d7a81920217fcf7a687ba5e2d10abad5c78085d2" region="maincpu" offset="a000"/>
              <rom name="epr-5332.3" merge="epr-5332.3" size="8192" crc="7a72ab3d" sha1="4a6ad09949a438562d7043532d628cefdbb5a2fe" region="soundcpu" offset="0"/>
              <rom name="epr-5331.82" merge="epr-5331.82" size="8192" crc="251d898f" sha1="353067a75d583d5f53ce2f473b52a35dd912639f" region="tiles" offset="0"/>
              <rom name="a1_ic65.65" size="8192" crc="0ab1893c" sha1="97877f5d8be7a7b80bbf9fe8dae2acd47c411d64" region="tiles" offset="2000"/>
              <rom name="epr-5329.81" merge="epr-5329.81" size="8192" crc="3e8bcaed" sha1="6d19543427b9c4d8d8f5ea0872cdf8cc4fe5018c" region="tiles" offset="4000"/>
              <rom name="a1_ic64.64" size="8192" crc="7f628ae6" sha1="f859a505b543382b42a478c8ae5cd90f3ea2bc2c" region="tiles" offset="6000"/>
              <rom name="epr-5327.80" merge="epr-5327.80" size="8192" crc="79e92cb1" sha1="03124ce123684b8469cf42be6ed5f0fffa64c480" region="tiles" offset="8000"/>
              <rom name="a1_ic63.63" size="8192" crc="5bcb253e" sha1="8c34a8377344940bcfb2495bfda3ffc6794f261b" region="tiles" offset="a000"/>
              <rom name="a1_ic86.86" merge="epr-5318.86" size="16384" crc="6f2e1fd3" sha1="326d538551245fce67d0fdba85975e27093b7a93" region="sprites" offset="0"/>
              <rom name="a1_ic93.93" size="16384" crc="07987244" sha1="8468b95684b1f62c6de6af1b1d405bfb333e4e26" region="sprites" offset="4000"/>
              <rom name="pr-5317.106" merge="pr-5317.106" size="256" crc="648350b8" sha1="c7986aa9127ef5b50b845434cb4e81dff9861cd2" region="proms" offset="0"/>
              <chip type="cpu" tag="maincpu" name="Z80" clock="20000000"/>
              <chip type="cpu" tag="soundcpu" name="Z80" clock="4000000"/>
              <chip type="audio" tag="mono" name="Speaker"/>
              <chip type="audio" tag="sn1" name="SN76489A" clock="2000000"/>
              <chip type="audio" tag="sn2" name="SN76489A" clock="4000000"/>
              <display tag="screen" type="raster" rotate="270" width="479" height="224" refresh="60.096154" pixclock="10000000" htotal="640" hbend="16" hbstart="495" vtotal="260" vbend="0" vbstart="224" />
              <sound channels="1"/>
              <input players="2" buttons="2" coins="2" service="yes">
                     <control type="joy" ways="8"/>
              <dipswitch name="Coin A" tag="SWA" mask="15">
                     <dipvalue name="4 Coins/1 Credit" value="7"/>
                     <dipvalue name="3 Coins/1 Credit" value="8"/>
                     <dipvalue name="2 Coins/1 Credit" value="9"/>
                     <dipvalue name="2 Coins/1 Credit 5/3 6/4" value="5"/>
                     <dipvalue name="2 Coins/1 Credit 4/3" value="4"/>
                     <dipvalue name="1 Coin/1 Credit" value="15" default="yes"/>
                     <dipvalue name="1 Coin/1 Credit 2/3" value="1"/>
                     <dipvalue name="1 Coin/1 Credit 4/5" value="2"/>
                     <dipvalue name="1 Coin/1 Credit 5/6" value="3"/>
                     <dipvalue name="2 Coins/3 Credits" value="6"/>
                     <dipvalue name="1 Coin/2 Credits" value="14"/>
                     <dipvalue name="1 Coin/3 Credits" value="13"/>
                     <dipvalue name="1 Coin/4 Credits" value="12"/>
                     <dipvalue name="1 Coin/5 Credits" value="11"/>
                     <dipvalue name="1 Coin/6 Credits" value="10"/>
              <dipswitch name="Coin B" tag="SWA" mask="240">
                     <dipvalue name="4 Coins/1 Credit" value="112"/>
                     <dipvalue name="3 Coins/1 Credit" value="128"/>
                     <dipvalue name="2 Coins/1 Credit" value="144"/>
                     <dipvalue name="2 Coins/1 Credit 5/3 6/4" value="80"/>
                     <dipvalue name="2 Coins/1 Credit 4/3" value="64"/>
                     <dipvalue name="1 Coin/1 Credit" value="240" default="yes"/>
                     <dipvalue name="1 Coin/1 Credit 2/3" value="16"/>
                     <dipvalue name="1 Coin/1 Credit 4/5" value="32"/>
                     <dipvalue name="1 Coin/1 Credit 5/6" value="48"/>
                     <dipvalue name="2 Coins/3 Credits" value="96"/>
                     <dipvalue name="1 Coin/2 Credits" value="224"/>
                     <dipvalue name="1 Coin/3 Credits" value="208"/>
                     <dipvalue name="1 Coin/4 Credits" value="192"/>
                     <dipvalue name="1 Coin/5 Credits" value="176"/>
                     <dipvalue name="1 Coin/6 Credits" value="160"/>
              <dipswitch name="Cabinet" tag="SWB" mask="1">
                     <dipvalue name="Upright" value="0" default="yes"/>
                     <dipvalue name="Cocktail" value="1"/>
              <dipswitch name="Lives" tag="SWB" mask="6">
                     <dipvalue name="3" value="6" default="yes"/>
                     <dipvalue name="4" value="4"/>
                     <dipvalue name="5" value="2"/>
                     <dipvalue name="Infinite" value="0"/>
              <dipswitch name="Ship" tag="SWB" mask="8">
                     <dipvalue name="Single" value="8" default="yes"/>
                     <dipvalue name="Multi" value="0"/>
              <dipswitch name="Bonus Life" tag="SWB" mask="48">
                     <dipvalue name="30k, then every 40k" value="48" default="yes"/>
                     <dipvalue name="40k, then every 50k" value="32"/>
                     <dipvalue name="50k, then every 60k" value="16"/>
                     <dipvalue name="60k, then every 70k" value="0"/>
              <dipswitch name="Difficulty" tag="SWB" mask="192">
                     <dipvalue name="Easy" value="192" default="yes"/>
                     <dipvalue name="Medium" value="128"/>
                     <dipvalue name="Hard" value="64"/>
                     <dipvalue name="Hardest" value="0"/>
              <driver status="good" emulation="good" color="good" sound="good" graphic="good" savestate="supported" palettesize="2048"/>

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