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demoneye: MAME ROM Information.


Demoneye-X (c) 1981 Irem.

Fearsome Unknown Creatures Close In. Now, A New Terror Spreads Out Across The Universe !! The player moves his spaceship to the right and left with the control lever and fires missiles by pressing the Fire button. When the space demons are attacked they change their shapes and fire missiles. The player must avoid their attacks and retaliate with his own missiles. When all the small demons have been shot down and the super-demon is hit in the heart, the screen is cleared.


Irem M-27 hardware (contains 4 boards, the main M-27M-C board, the sound board, a M-27sb sub board and a M-42-S board full of 2114's).

Main CPU : M6502 (@ 5.865 Mhz)

Sound CPU : M6802 (@ 3.579545 Mhz)

Sound Chips : (2x) AY8910 (@ 3.579545 Mhz)

Screen orientation : Vertical

Video resolution : 240 x 256 pixels

Screen refresh : 60.00 Hz

Palette colors : 9

Players : 2

Control : 2-way joystick

Buttons : 1


Released in November 1981.


Demoneye-Jr : 40 Points

Octoplus : 70 Points

Neo Octoplus : 100 Points

Neo Demoneye-Jr : 100 Points

Octobomb : 100 Points

Octobomb Formation : 200, 400, 800 Points

Demoneye-X : 500 Points

Demoneye-King : 1500 Points


* Hint 1 - The Small Demons Change Their Shapes Three Times : The first demon shape (Demoneye-jr : 40 pts) turns into the second (Octoplus : 70 pts) and the second into the third (Octobomb : 100 pts) when they are shot. Care must be taken to prevent Octobomb ramming into the spaceship.

* Hint 2 - Bonus Chance for 3-Demon Formation : Sometimes Demoneye-jr and Octoplus change their color. If Octoplus are shot while their color is changing they will turn into a group of three Octobombs. If all these three demons are killed a bonus point is scored.

* Hint 3 - Aim At The Heart Of he Super-Demon : When all the small demons have been wiped out, a hole appears beneath the body of the Super-Demon (Demoneye-X : 500 pts). This is the Super-Demon's weak point. If the player can shoot the Super-Demon in the heart he can destroy the creature.

* Hint 4 - 3-Eyes Demon King Appears : If the player succeeds in a series of two games, a three-eyed demon king appears (Demoneye-King : 1500 pts). To destroy it, the player must hit its heart 3 times with his missiles.


Game's rom.

MAME Info:

0.74u2 [Pierpaolo Prazzoli]


- 32bit build has "stronger" colors. Firewave (ID 03324)


- 0.122u7: Rewrote and modernized the redalert driver [Zsolt Vasvari]: Correct colors, in places different from the manual's description, but matches the flyer perfectly. Added speech. Fixed AY-8910 sounds. Odds and ends. Corrected colors in Demoneye-X. Added some sound to Demoneye-X. Marked Demoneye-X it NOT_WORKING, due to the (still) missing 3rd gfx layer that makes it impossible to pass the 2nd level. Fixed cpu2 rom address to $3000. Changed user1 rom ($200) to proms ($0 - color). Changed M6502 CPU1 clock speed to 781250 Hz, M6802 CPU2 to 894886 Hz and 2x AY-3-8910A to 1789772 Hz.

- 0.74u2: Pierpaolo Prazzoli added Demoneye-X (Irem 1981). GFX problems and no sound.

- 1st October 2003: Pierpaolo Prazzoli added Demoneye-X to the Red Alert driver (it's missing sound and has wrong colors).

LEVELS: 1 (endless)

Recommended Games (Defence):

Galaxy Wars

Space Launcher

The End

Missile Command

Arcade Classics (Missile Command II)

New York New York

Space Zap

Colony 7

Dark Warrior


Laser Base


Satan's Hollow

Space Tactics

War of the Worlds








Alligator Hunt

Romset: 33 kb / 10 files / 18.4 zip

MAME XML Output:

       <game name="demoneye" sourcefile="redalert.c">
              <rom name="demoneye.6" size="4096" crc="b03ee3a9" sha1="66b6115fbb4e8097152702022c59c464e8211e5a" region="maincpu" offset="6000"/>
              <rom name="demoneye.7" size="4096" crc="667a5de7" sha1="c3ce7fbbc6c98250e9d5f85854e6887017ca5ff9" region="maincpu" offset="7000"/>
              <rom name="demoneye.8" size="4096" crc="257484d7" sha1="3937cce546462a471adbdc1da63ddfc20cfc7b79" region="maincpu" offset="8000"/>
              <rom name="demoneye.9" size="4096" crc="bd8d79a8" sha1="68c1443ef78b545eb9e612573b86515c3ad7f103" region="maincpu" offset="9000"/>
              <rom name="demoneye.a" size="4096" crc="a27d08aa" sha1="659ad22778e852fc58f3951d62bc01151c973d36" region="maincpu" offset="a000"/>
              <rom name="demoneye.b" size="4096" crc="1fd3585b" sha1="b1697b7b21b739499fda1e155530dbfab89f3358" region="maincpu" offset="b000"/>
              <rom name="demoneye.7s" size="4096" crc="8fdc9364" sha1="3fccb5b22f08d6a0cde85863c1ce5399c84f233e" region="audiocpu" offset="2000"/>
              <rom name="demoneye.6s" size="4096" crc="0a23def9" sha1="b52f52be312ec7810e3c9cbd3913e887f983b1ee" region="audiocpu" offset="3000"/>
              <rom name="demoneye.1a2" size="512" crc="eaf5a66e" sha1="d8ebe05ba5d75fbf6ad45f710e5bd27b6afad44b" region="proms" offset="0"/>
              <rom name="demoneye.1a" size="512" crc="d03488ea" sha1="11027f502ad2a9255b2e5611ab2eee16ede1d704" region="user1" offset="0"/>
              <chip type="cpu" tag="maincpu" name="M6502" clock="781250"/>
              <chip type="cpu" tag="audiocpu" name="M6802" clock="894886"/>
              <chip type="audio" tag="mono" name="Speaker"/>
              <chip type="audio" tag="ay1" name="AY-3-8910A" clock="1789772"/>
              <chip type="audio" tag="ay2" name="AY-3-8910A" clock="1789772"/>
              <display tag="screen" type="raster" rotate="270" width="256" height="240" refresh="60.000000" />
              <sound channels="1"/>
              <input players="2" buttons="1" coins="2">
                     <control type="joy" ways="2"/>
              <dipswitch name="Lives" tag="C000" mask="3">
                     <dipvalue name="3" value="0" default="yes"/>
                     <dipvalue name="4" value="1"/>
                     <dipvalue name="5" value="2"/>
                     <dipvalue name="6" value="3"/>
              <dipswitch name="Unknown" tag="C000" mask="4">
                     <dipvalue name="Off" value="0" default="yes"/>
                     <dipvalue name="On" value="4"/>
              <dipswitch name="Bonus Life" tag="C000" mask="8">
                     <dipvalue name="5000" value="0" default="yes"/>
                     <dipvalue name="7000" value="8"/>
              <dipswitch name="Coinage" tag="C000" mask="48">
                     <dipvalue name="2 Coins/1 Credit" value="48"/>
                     <dipvalue name="1 Coin/1 Credit" value="16" default="yes"/>
                     <dipvalue name="1 Coin/2 Credits" value="32"/>
                     <dipvalue name="Free Play" value="0"/>
              <dipswitch name="Cabinet" tag="C000" mask="64">
                     <dipvalue name="Upright" value="64" default="yes"/>
                     <dipvalue name="Cocktail" value="0"/>
              <dipswitch name="Unknown" tag="C000" mask="128">
                     <dipvalue name="Off" value="0" default="yes"/>
                     <dipvalue name="On" value="128"/>
              <driver status="preliminary" emulation="preliminary" color="good" sound="imperfect" graphic="imperfect" savestate="supported" palettesize="0"/>

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