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pc_grdus: MAME ROM Information.


Gradius (c) 1986 Konami.


Nintendo PlayChoice-10 hardware

Game ID : GR

Main CPU : Z80 (@ 4 Mhz), N2A03 (@ 1.789772 Mhz)

Sound Chips : N2A03 (@ 1.789772 Mhz), DAC (@ 1.789772 Mhz)

Screen orientation : Horizontal

Video resolution : 256 x 240 pixels

Screen refresh : 60.00 Hz

Palette colors : 320

Players : 2

Control : 8-way joystick

Buttons : 2


Kazuhisa Hashimoto, who programmed this Nintendo Famicom port, found the original arcade game too hard, so he inserted the so-called Konami code (see Tips & Tricks section).


* Continue : at the Game Over screen press Down, Up, B, A, B, A, B, A, Start. Note : This can only be used once per game.

* Classic Konami code : press Start during the game, then press Up(x2), Down(x2), Left, Right, Left, Right, B, A, Start. This code equips you with two Missiles, two options and a force field barrier.

* Secret message : during the title screen hold B+A, then reset the machine and return in the game (always with B+A) to get the following message : KONAMI ONE, GRADIUS ONE.

* Level skip : destroy the ship that appears at the end of each level within five seconds to skip the next level.


Programmed by : Kazuhisa Hashimoto

Music by : Miki Higashino


* Consoles :

Nintendo Wii (2007, "Virtual Console")


Game's rom.

MAME Info:

0.37b7 [Ernesto Corvi]


- 0.88u2: Changed description to 'Gradius (PlayChoice-10)' and clone to 'Gradius (PlayChoice-10, older)'.

- 0.71: Changed description of clone '(Early version)' to '(older)'.

- 0.68: Added clone 'PlayChoice-10: Gradius (Early version)'.

- 0.37b7: Ernesto Corvi added 'PlayChoice-10: Gradius' (Konami 1986).


- Use the A button to fire at Enemies ans defend yourself!

- Capture RED colored Enemy Power Capsules to light up the blue Power Boost Selection Indicators at the bottom of the game screen! To activate the Power Boost, hit the Power Boost B button when the desired Indicator light has turned yellow.

- Capture BLUE Power Capsules to destroy all the Enemies visible on the screen!

- Secret Power Up: Press START to pause the game. To restart your game move the Controller UP-UP-DOWN-DOWN-LEFT-RIGHT-LEFT-RIGHT the press B-A and START. Waring: You can use the Secret Power-Up only once per phase!

- Secret Continue: After losing game, move Controller DOWN-UP then press B-A-B-A-B-A-B-A quickly while GAME OVER is displayed.


Recommended Games (R-Type):

Gradius / Nemesis

Gradius (PlayChoice-10)

Vs. Gradius

Gradius II / Vulcan Venture

Gradius III

Gradius 4: Fukkatsu


Salamander 2


R-Type II

R-Type Leo

Heavy Unit

Turtle Ship


X Multiply

Zero Wing

Raiga - Strato Fighter


Blaze On

Hyper Duel

Super Spacefortress Macross II

Romset: 73 kb / 4 files / 39.4 zip

MAME XML Output:

       <game name="pc_grdus" sourcefile="playch10.c" romof="playch10">
              <description>Gradius (PlayChoice-10)</description>
              <biosset name="dual" description="Dual Monitor Version" default="yes"/>
              <biosset name="single" description="Single Monitor Version"/>
              <rom name="pch1-c.8t" merge="pch1-c.8t" bios="dual" size="16384" crc="d52fa07a" sha1="55cabf52ae10c050c2229081a80b9fe5454ab8c5" region="maincpu" offset="0"/>
              <rom name="pck1-c.8t" merge="pck1-c.8t" bios="single" size="16384" crc="503ee8b1" sha1="3bd20bc71cac742d1b8c1430a6426d0a19db7ad0" region="maincpu" offset="0"/>
              <rom name="gr-u4" size="8192" crc="27d76160" sha1="605d58c57969c831778b95356fcf103a1d5f98a3" region="maincpu" offset="c000"/>
              <rom name="pch1-c.8p" merge="pch1-c.8p" size="8192" crc="30c15e23" sha1="69166afdb2fe827c7f1919cdf4197caccbd961fa" region="gfx1" offset="0"/>
              <rom name="pch1-c.8m" merge="pch1-c.8m" size="8192" crc="c1232eee" sha1="beaf9fa2d091a3c7f70c51e966d885b1f9f0935f" region="gfx1" offset="2000"/>
              <rom name="pch1-c.8k" merge="pch1-c.8k" size="8192" crc="9acffb30" sha1="b814f10ef23f2ca445fabafcbf7f25e2d454ba8c" region="gfx1" offset="4000"/>
              <rom name="pch1-c.6f" merge="pch1-c.6f" size="256" crc="e5414ca3" sha1="d2878411cda84ffe0afb2e538a67457f51bebffb" region="proms" offset="0"/>
              <rom name="pch1-c.6e" merge="pch1-c.6e" size="256" crc="a2625c6e" sha1="a448b47c9289902e26a3d3c4c7d5a7968c385e81" region="proms" offset="100"/>
              <rom name="pch1-c.6d" merge="pch1-c.6d" size="256" crc="1213ebd4" sha1="0ad386fc3eab5e53c0288ad1de33639a9e461b7c" region="proms" offset="200"/>
              <rom name="rp2c0x.pal" merge="rp2c0x.pal" size="192" crc="48de65dc" sha1="d10acafc8da9ff479c270ec01180cca61efe62f5" region="palette" offset="0"/>
              <rom name="gr-u2" size="32768" crc="aa96889c" sha1="e4380a7c0778541af8216e3ac1e14ff23fb074a9" region="cart" offset="8000"/>
              <rom name="gr-u3" size="32768" crc="de963bec" sha1="ecb76b5897658ebac31a07516bb2a5820279474f" region="gfx2" offset="0"/>
              <rom name="security.prm" size="16" crc="b8d5bf8a" sha1="1c208fa5409b6e21aa576e1b9e086e830dc26a1a" region="rp5h01" offset="0"/>
              <chip type="cpu" tag="maincpu" name="Z80" clock="4000000"/>
              <chip type="cpu" tag="cart" name="N2A03" clock="1789772"/>
              <chip type="audio" tag="mono" name="Speaker"/>
              <chip type="audio" tag="nes" name="N2A03" clock="1789772"/>
              <chip type="audio" tag="dac" name="DAC"/>
              <display tag="top" type="raster" rotate="0" width="256" height="240" refresh="60.000000" pixclock="4024320" htotal="256" hbend="0" hbstart="256" vtotal="262" vbend="0" vbstart="240" />
              <display tag="bottom" type="raster" rotate="0" width="256" height="240" refresh="60.000000" pixclock="4024320" htotal="256" hbend="0" hbstart="256" vtotal="262" vbend="0" vbstart="240" />
              <sound channels="1"/>
              <input players="2" buttons="2" coins="2" service="yes">
                     <control type="joy" ways="8"/>
              <dipswitch name="Units of time (coin A/coin B)" tag="SW1" mask="63">
                     <dipvalue name="300/0" value="0" default="yes"/>
                     <dipvalue name="300/100" value="1"/>
                     <dipvalue name="300/200" value="2"/>
                     <dipvalue name="300/300" value="3"/>
                     <dipvalue name="300/400" value="4"/>
                     <dipvalue name="300/500" value="5"/>
                     <dipvalue name="300/600" value="6"/>
                     <dipvalue name="300/700" value="7"/>
                     <dipvalue name="300/800" value="8"/>
                     <dipvalue name="300/900" value="9"/>
                     <dipvalue name="150/0" value="10"/>
                     <dipvalue name="150/200" value="11"/>
                     <dipvalue name="150/400" value="12"/>
                     <dipvalue name="150/500" value="15"/>
                     <dipvalue name="150/600" value="13"/>
                     <dipvalue name="150/800" value="14"/>
                     <dipvalue name="300/1000" value="16"/>
                     <dipvalue name="300/1100" value="17"/>
                     <dipvalue name="300/1200" value="18"/>
                     <dipvalue name="300/1300" value="19"/>
                     <dipvalue name="300/1400" value="20"/>
                     <dipvalue name="300/1500" value="21"/>
                     <dipvalue name="300/1600" value="22"/>
                     <dipvalue name="300/1700" value="23"/>
                     <dipvalue name="300/1800" value="24"/>
                     <dipvalue name="300/1900" value="25"/>
                     <dipvalue name="150/1000" value="26"/>
                     <dipvalue name="150/1200" value="27"/>
                     <dipvalue name="150/1400" value="28"/>
                     <dipvalue name="150/1500" value="31"/>
                     <dipvalue name="150/1600" value="29"/>
                     <dipvalue name="150/1800" value="30"/>
                     <dipvalue name="300/2000" value="32"/>
                     <dipvalue name="300/2100" value="33"/>
                     <dipvalue name="300/2200" value="34"/>
                     <dipvalue name="300/2300" value="35"/>
                     <dipvalue name="300/2400" value="36"/>
                     <dipvalue name="300/2500" value="37"/>
                     <dipvalue name="300/2600" value="38"/>
                     <dipvalue name="300/2700" value="39"/>
                     <dipvalue name="300/2800" value="40"/>
                     <dipvalue name="300/2900" value="41"/>
                     <dipvalue name="150/2000" value="42"/>
                     <dipvalue name="150/2200" value="43"/>
                     <dipvalue name="150/2400" value="44"/>
                     <dipvalue name="150/2500" value="47"/>
                     <dipvalue name="150/2600" value="45"/>
                     <dipvalue name="150/2800" value="46"/>
                     <dipvalue name="300/3000" value="48"/>
                     <dipvalue name="300/3100" value="49"/>
                     <dipvalue name="300/3200" value="50"/>
                     <dipvalue name="300/3300" value="51"/>
                     <dipvalue name="300/3400" value="52"/>
                     <dipvalue name="300/3500" value="53"/>
                     <dipvalue name="300/3600" value="54"/>
                     <dipvalue name="300/3700" value="55"/>
                     <dipvalue name="300/3800" value="56"/>
                     <dipvalue name="300/3900" value="57"/>
                     <dipvalue name="150/3000" value="58"/>
                     <dipvalue name="150/3200" value="59"/>
                     <dipvalue name="150/3400" value="60"/>
                     <dipvalue name="150/3500" value="63"/>
                     <dipvalue name="150/3600" value="61"/>
                     <dipvalue name="150/3800" value="62"/>
              <dipswitch name="Demo Sounds" tag="SW1" mask="64">
                     <dipvalue name="Off" value="0"/>
                     <dipvalue name="On" value="64" default="yes"/>
              <dipswitch name="Service Mode" tag="SW1" mask="128">
                     <dipvalue name="Off" value="0" default="yes"/>
                     <dipvalue name="On" value="128"/>
              <dipswitch name="Timer speed" tag="SW2" mask="191">
                     <dipvalue name="60 units per second" value="5"/>
                     <dipvalue name="30 units per second" value="6"/>
                     <dipvalue name="20 units per second" value="7"/>
                     <dipvalue name="15 units per second" value="8"/>
                     <dipvalue name="10 units per second" value="10"/>
                     <dipvalue name="6 units per second" value="14"/>
                     <dipvalue name="5 units per second" value="16"/>
                     <dipvalue name="4 units per second" value="19"/>
                     <dipvalue name="3 units per second" value="24"/>
                     <dipvalue name="2 units per second" value="34"/>
                     <dipvalue name="1 unit per second" value="63" default="yes"/>
                     <dipvalue name="1 unit every 4 seconds" value="0"/>
                     <dipvalue name="Free Play" value="128"/>
              <dipswitch name="Coin Mode" tag="SW2" mask="64">
                     <dipvalue name="Mode 1" value="0" default="yes"/>
                     <dipvalue name="Mode 2" value="64"/>
              <driver status="good" emulation="good" color="good" sound="good" graphic="good" savestate="unsupported" palettesize="768"/>

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