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defense: MAME ROM Information.


Defense (c) 1987 Sega.

A strategic challenge in the science of offensive & defensive warfare.


Sega System 16B hardware

Game ID : 317-0028

Main CPU : 68000 (@ 10 Mhz)

Sound CPU : Z80 (@ 5 Mhz)

Sound Chips : YM2151 (@ 4 Mhz), UPD7759 (@ 640 Khz)

Players : 2

Control : 8-way joystick with button, trackball


Released in April 1987.

This game is also known as "SDI - Strategic Defense Initiative".


* Flicky Mode :

1) Insert a credit (ONLY 1 credit)

2) Input code Up(x2), Down, Right, Down, Left, Down(x2) with Player 1

3) Input code Player 2 Shot button x3 then press Player 2 START button

4) Satellite (player character) will change to Flicky at the starting of Stage 2.


* Consoles :

Sega Master System (1987, "Global Defense")


Game's rom.

MAME Info:

0.92 [?]

0.34b4 [Phil Stroffolino]


* Wanted: 317-0027 FD1089B CPU


- Broken background in 2nd stage. suutaroka (ID 02919)


- 0.134u4: Team Japump changed description of clone 'SDI - Strategic Defense Initiative (Europe, System 16A, FD1089B 317-0027)' to 'SDI - Strategic Defense Initiative (Japan, old, System 16A, FD1089B 317-0027)'.

- 0.127u1: Atari Ace moved FD1089 decryption keys to external files. Added 317-0027.key to SDI.

- 0.113: Ruben added 'Allow Continue' dipswitch to clone SDI (System 16B).

- 0.104u6: Arzeno Fabrice added clone SDI - Strategic Defense Initiative (System 16B, FD1089A 317-0028). Renamed (sdib) to (sdibl).

- 0.93: Torsten added clone Defense (System 16B, FD1089A 317-0028). Note the program roms are bad on the original board, a patch is needed. Nicola Salmoria added FD1089 317-0028 table. Changed description to 'SDI - Strategic Defense Initiative (Europe, System 16A, FD1089B 317-0027)'.

- 0.92: Changed 'SDI - Strategic Defense Initiative (System 16B, unprotected)' to clone '(bootleg)' and 'SDI - Strategic Defense Initiative (Europe, System 16A, FD1089A 317-0027)' to parent. Renamed (sdi) to (sdib) and (sdioj) to (sdi).

- 0.91: Aaron Giles fixed the GFX problems present in SDI after the first level with the help of some INPs.

- 0.90u1: Added partial FD1089A table derived by comparison with the unencrypted versions for SDI (317-0027) and Aaron Giles hooked up the controls - Game now playable. Actual working cpu are needed to obtain full tables. Changed description of clone '(Japan, System 16A, FD1094 317-0027)' to '(Europe, System 16A, FD1089A 317-0027)'.

- 0.89u2: Added uPD7759 sound.

- 0.88u7: Changed description to 'SDI - Strategic Defense Initiative (System 16B, unprotected)' and clone '(Japan)' to '(Japan, System 16A, FD1094 317-0027)'.

- 0.88u6: Changed description to 'SDI - Strategic Defense Initiative (System 16B)' and clone '(set 3, 317-0049)' to '(set 3, System 16B, FD1094 317-0049)'. Changed Z80 CPU2 clock speed to 5MHz and palettesize to 6144 colors.

- 0.36b15: Added clone SDI - Strategic Defense Initiative (Japan).

- 0.36b2: Removed uPD7759 sound.

- 0.36b1: Changed 8-way Joystick to Trackball.

- 0.35b13: Changed description to 'SDI - Strategic Defense Initiative'.

- 0.34b4: Phil Stroffolino added SDI (Sega 1987), not working.


Other Emulators:

* FB Alpha

* System 16

Recommended Games:

Missile X / Guided Missile

Tora Tora

Red Alert



D-Day (Jaleco)


Danger Zone

SDI - Strategic Defense Initiative


Fortress 2 Blue Arcade

Romset: 808 kb / 17 files / 347.0 zip

MAME XML Output:

       <game name="defense" sourcefile="segas16b.c" cloneof="sdi" romof="sdi">
              <description>Defense (System 16B, FD1089A 317-0028)</description>
              <rom name="epr-10917a.a4" size="32768" crc="d91ac47c" sha1="298e4a9c1b00bd6090e7c4f42efd4c6e20b69d62" region="maincpu" offset="0"/>
              <rom name="epr-10915.a1" size="32768" crc="7344c510" sha1="4bee5485204e8ec858726e403c55bb1592a991cc" region="maincpu" offset="1"/>
              <rom name="epr-10918a.a5" size="32768" crc="e41befcd" sha1="bbac5f501d215b18d34e3d366fd39cf7fa38a25c" region="maincpu" offset="10000"/>
              <rom name="epr-10916a.a2" size="32768" crc="7f58ba12" sha1="38ca3ded758a005f6bb345ffe991a7d374ddeede" region="maincpu" offset="10001"/>
              <rom name="epr-10829.a6" size="32768" crc="a431ab08" sha1="95888af6fae598c40e7fefffbfd1f0b551e9f1be" region="maincpu" offset="20000"/>
              <rom name="epr-10826.a3" size="32768" crc="2ed8e4b7" sha1="23da16e29a475d6ec7ccec8cdd18a1dc78ae69cd" region="maincpu" offset="20001"/>
              <rom name="10919.b9" size="65536" crc="23b88f82" sha1="6c1336c17bdd8adc39bf4eca5b3348ac7b1e6559" region="gfx1" offset="0"/>
              <rom name="10920.b10" size="65536" crc="22b1fb4c" sha1="f4721796155f13d472d735c646bc52f20f04debd" region="gfx1" offset="10000"/>
              <rom name="10921.b11" size="65536" crc="7788f55d" sha1="435273196a5e812f28a2224807e842ccadff9c10" region="gfx1" offset="20000"/>
              <rom name="10760.b1" size="65536" crc="70de327b" sha1="11dde9cefd993f5fb02baf5809fae6c1176a58a1" region="gfx2" offset="1"/>
              <rom name="10763.b5" size="65536" crc="99ec5cb5" sha1="933a2216a2c772fc82499c739457865b1c75cdb8" region="gfx2" offset="0"/>
              <rom name="10761.b2" size="65536" crc="4e80f80d" sha1="d168235bdf09317545c999676a4adf015df32366" region="gfx2" offset="20001"/>
              <rom name="10764.b6" merge="epr-10764.18" size="65536" crc="602da5d5" sha1="d32cdde7d86c4561e7bfa547d7d7995ce9a43c24" region="gfx2" offset="20000"/>
              <rom name="10762.b3" size="65536" crc="464b5f78" sha1="b730964a54e6a63fa5b7cc2cbf9ec0ab650626d5" region="gfx2" offset="40001"/>
              <rom name="10765.b7" merge="epr-10765.24" size="65536" crc="0a73a057" sha1="7f31124c67541a245e069e5b6aac59935d99a9a9" region="gfx2" offset="40000"/>
              <rom name="10775.a7" size="32768" crc="4cbd55a8" sha1="8af2c52ab61338c8a9f1a74a05470dd3d5e0c42f" region="soundcpu" offset="0"/>
              <rom name="317-0028.key" merge="317-0027.key" size="8192" crc="9a5307b2" sha1="2fcc576ed95b96ff6ea71252c3fab33b8b3fc1f5" status="baddump" region="fd1089a" offset="0"/>
              <chip type="cpu" tag="maincpu" name="68000" clock="10000000"/>
              <chip type="cpu" tag="soundcpu" name="Z80" clock="5000000"/>
              <chip type="audio" tag="mono" name="Speaker"/>
              <chip type="audio" tag="ymsnd" name="YM2151" clock="4000000"/>
              <chip type="audio" tag="upd" name="UPD7759" clock="640000"/>
              <display tag="screen" type="raster" rotate="0" width="320" height="224" refresh="60.054389" pixclock="6293700" htotal="400" hbend="0" hbstart="320" vtotal="262" vbend="0" vbstart="224" />
              <sound channels="1"/>
              <input players="2" buttons="1" coins="2" service="yes">
                     <control type="joy" ways="8"/>
                     <control type="trackball" minimum="0" maximum="255" sensitivity="75" keydelta="5" reverse="yes"/>
              <dipswitch name="Allow Continue" tag="DSW2" mask="1">
                     <dipvalue name="Off" value="1" default="yes"/>
                     <dipvalue name="On" value="0"/>
              <dipswitch name="Demo Sounds" tag="DSW2" mask="2">
                     <dipvalue name="Off" value="2"/>
                     <dipvalue name="On" value="0" default="yes"/>
              <dipswitch name="Lives" tag="DSW2" mask="12">
                     <dipvalue name="2" value="8"/>
                     <dipvalue name="3" value="12" default="yes"/>
                     <dipvalue name="4" value="4"/>
                     <dipvalue name="Free" value="0"/>
              <dipswitch name="Difficulty" tag="DSW2" mask="48">
                     <dipvalue name="Easy" value="32"/>
                     <dipvalue name="Normal" value="48" default="yes"/>
                     <dipvalue name="Hard" value="16"/>
                     <dipvalue name="Hardest" value="0"/>
              <dipswitch name="Bonus Life" tag="DSW2" mask="192">
                     <dipvalue name="Every 50000" value="128"/>
                     <dipvalue name="50000" value="192" default="yes"/>
                     <dipvalue name="100000" value="64"/>
                     <dipvalue name="None" value="0"/>
              <dipswitch name="Coin A" tag="DSW1" 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, 5/6" value="3"/>
                     <dipvalue name="1 Coin/1 Credit, 4/5" value="2"/>
                     <dipvalue name="1 Coin/1 Credit, 2/3" value="1"/>
                     <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"/>
                     <dipvalue name="Free Play (if Coin B too) or 1/1" value="0"/>
              <dipswitch name="Coin B" tag="DSW1" 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, 5/6" value="48"/>
                     <dipvalue name="1 Coin/1 Credit, 4/5" value="32"/>
                     <dipvalue name="1 Coin/1 Credit, 2/3" value="16"/>
                     <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"/>
                     <dipvalue name="Free Play (if Coin A too) or 1/1" value="0"/>
              <driver status="good" emulation="good" color="good" sound="good" graphic="good" savestate="unsupported" palettesize="6144"/>

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