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alexkidd: MAME ROM Information.


Alex Kidd With Stella - The Lost Stars (c) 1986 Sega.

A platform game.


Sega System 16A hardware

Main CPU : 68000 (@ 10 Mhz)

Sound CPU : Z80 (@ 4 Mhz), N7751 (@ 400 Khz)

Sound Chips : YM2151 (@ 4 Mhz), DAC (@ 4 Mhz)

Players : 2

Control : 8-way joystick

Buttons : 2


Released in December 1986 in Japan.

This game is the debut of Sega's first mascot, Alex Kidd who mostly appeared in various games for the Sega Master System. Alex's only game that was made for the Sega Mega Drive was "Alex Kidd in the Enchanted Castle" in 1989. Alex Kidd's last game was titled "Alex Kidd in Shinobi World" which was somewhat of a crossover between the Alex Kidd series and Shinobi. In 1991, Alex Kidd was replaced with a 'faster than a speeding bullet'-type character called Sonic The Hedgehog.

Opa-Opa, the main character from "Fantasy Zone", appears as the container for the 'Miracle Ball' in round 2 of this game.

Sony Music Entertainment / Scitron released a limited-edition soundtrack album for this game (Sega Arcade 80's Vol.1 - SCDC-00245) on 19/02/2003.


Protected PCB (set 1 in MAME) : specific platforms in gameplay move upward.

Unprotected PCB (set 2 in MAME) : specific platforms in gameplay move downward.


1. Alex Kidd In Miracle World (1986, Sega Master System)

2. Alex Kidd With Stella - The Lost Stars (1986)

3. Alex Kidd In High-Tech World (1989, Sega Master System)

4. Alex Kidd In Enchanted Castle (1989, Sega Mega Drive)

5. Alex Kidd In Shinobi World (1990, Sega Master System)


Sound composer : Hiroshi Kawaguchi (Hiro)


* Consoles :

Sega Master System (1988)


Game's rom.

MAME Info:

0.92 [Phil Stroffolino]

0.36b2 [Andrew Prime]

0.34b4 [Phil Stroffolino]


- 0.133u1: Renamed (alexkid1) to (alexkidd1).

- 0.127u1: Atari Ace moved FD1089 decryption keys to external files. Added 317-0021.key to clone Alex Kidd: The Lost Stars (set 1, FD1089A 317-0021).

- 0.125u6: Changed description of clone '(set 1, FD1089A 317-unknown)' to '(set 1, FD1089A 317-0021)'.

- 0.92: Renamed (alexkidd) to (alexkid1) and (alexkida) to (alexkidd).

- 0.90u1: Added partial FD1089A table derived by comparison with the unencrypted versions for Alex Kidd (set 1) - Game now playable. Actual working cpu are needed to obtain full tables. Changed description to 'Alex Kidd: The Lost Stars (set 1, FD1089A 317-unknown)'.

- 0.89u1: Changed Z80 CPU2 clock speed to 4MHz.

- 0.88u7: Changed description to 'Alex Kidd: The Lost Stars (set 1, FD1094? 317-unknown)' and clone '(set 2)' to '(set 2, unprotected)'. Changed Z80 CPU2 clock speed to 5MHz and palettesize to 6144 colors.

- 0.67: Changed parent and clone descriptions to 'Alex Kidd: The Lost Stars'.

- 0.37b9: Fixed gfx2 rom loading.

- 0.36b4: Added 'Continues' dipswitch.

- 0.36b3: Changed description to 'Alex Kidd (set 1)' and clone '(bootleg)' to '(set 2)'. Renamed (alexkdbl) to (alexkida).

- 0.36b2: Andrew Prime added Alex Kidd (Sega 1986). Renamed (alexkidd) to (alexkdbl).

- 0.36b1: Added 'Demo Sounds' dipswitch.

- 0.34b4: Phil Stroffolino added Alex Kidd (bootleg) (1986), not working.

LEVELS: 7 (must be finished twice)

Other Emulators:

* Calice

* FB Alpha

* System 16

Recommended Games (Platform Extra):



Pac-Land (United Amusements PC Engine)

Son Son

Road Runner

Vs. Super Mario Bros

Super Mario Bros. (PlayChoice-10)

Super Mario Bros. 2 (PlayChoice-10)

Super Mario Bros. 3 (PlayChoice-10)

Super Mario World


Alex Kidd: The Lost Stars


The Goonies (PlayChoice-10)

Vs. The Goonies


Red Robin

Wonder Boy

Wonder Boy in Monster Land

Wonder Boy III - Monster Lair

Chip'n Dale: Rescue Rangers (PlayChoice-10)

Psychic 5

Psycho Soldier


Tricky Doc


Bonze Adventure

Dynamite Dux

Hard Head

Hard Head 2


The NewZealand Story

Fantasy Land

Keith Courage In Alpha Zones

Legend of Hero Tonma

Marvel Land



Blue's Journey

Hammerin' Harry

Liquid Kids

Mega Twins


Yo! Noid (PlayChoice-10)

Caveman Ninja / Joe & Mac

Ninja Clowns


Rockin' Kats (PlayChoice-10)

The Simpsons

Three Wonders - Midnight Wanderers

The Addams Family (Nintendo Super System)


Kid Chameleon (Mega-Tech)


J. J. Squawkers

Magical Cat Adventure

Spin Master / Miracle Adventure

B.C. Kid

Battle Toads


Super Trio

Top Hunter - Roddy & Cathy

Charlie Ninja

Romset: 705 kb / 19 files / 284.2 zip

MAME XML Output:

       <game name="alexkidd" sourcefile="segas16a.c">
              <description>Alex Kidd: The Lost Stars (set 2, unprotected)</description>
              <rom name="epr-10447.43" size="65536" crc="29e87f71" sha1="af980e55c02b3de1121c144fee23af74d24042ac" region="maincpu" offset="0"/>
              <rom name="epr-10445.26" size="65536" crc="25ce5b6f" sha1="dfec64df7e8d145d30740808bc94bdbbe667c4e8" region="maincpu" offset="1"/>
              <rom name="epr-10448.42" size="65536" crc="05baedb5" sha1="fc15989bf3d850170e4e018d74f18553f0268576" region="maincpu" offset="20000"/>
              <rom name="epr-10446.25" size="65536" crc="cd61d23c" sha1="c235c4fef28556e9f2d07e815ad213c308e85598" region="maincpu" offset="20001"/>
              <rom name="epr-10431.95" size="32768" crc="a7962c39" sha1="c816fc5d9f21b2ba32b9841e64b634bce7ea78c8" region="gfx1" offset="0"/>
              <rom name="epr-10432.94" size="32768" crc="db8cd24e" sha1="656d98844ad9ccaa68e3f501137dddd0a27d999d" region="gfx1" offset="8000"/>
              <rom name="epr-10433.93" size="32768" crc="e163c8c2" sha1="ac54c5ecedca5b1a2c550de32687ca57c4d3a411" region="gfx1" offset="10000"/>
              <rom name="epr-10437.10" size="32768" crc="522f7618" sha1="9a6bc857dfef1dd1b7bffa034523c1c4cd8b3f4c" region="gfx2" offset="1"/>
              <rom name="epr-10441.11" size="32768" crc="74e3a35c" sha1="26b980a0a3aee94ac38e0e0c7d305bb35a60d1c4" region="gfx2" offset="0"/>
              <rom name="epr-10438.17" size="32768" crc="738a6362" sha1="a3c5f10c263cb216d275875f6333484a1cca281b" region="gfx2" offset="10001"/>
              <rom name="epr-10442.18" size="32768" crc="86cb9c14" sha1="42bd0ed985de61ff183eed0192257966caa01594" region="gfx2" offset="10000"/>
              <rom name="epr-10439.23" size="32768" crc="b391aca7" sha1="ca9d80b67e5365f709f90a5342b5e3aa7c7126e1" region="gfx2" offset="20001"/>
              <rom name="epr-10443.24" size="32768" crc="95d32635" sha1="788af2af1ae783128bcdc8cd44d17cd2f1542231" region="gfx2" offset="20000"/>
              <rom name="epr-10440.29" size="32768" crc="23939508" sha1="68450a18fc7e35f5b0155632aa68cffd251be38c" region="gfx2" offset="30001"/>
              <rom name="epr-10444.30" size="32768" crc="82115823" sha1="e4103003cda949bebe57815115a5028f4fe8e7d7" region="gfx2" offset="30000"/>
              <rom name="epr-10434.12" size="32768" crc="77141cce" sha1="6c5e83527f7e11a5ff5cc4fa75d55618a55e1a58" region="soundcpu" offset="0"/>
              <rom name="7751.bin" size="1024" crc="6a9534fc" sha1="67ad94674db5c2aab75785668f610f6f4eccd158" region="n7751" offset="0"/>
              <rom name="epr-10435.1" size="32768" crc="ad89f6e3" sha1="812a132142065b0fe13b5f0ac534b6d8830ba102" region="n7751data" offset="0"/>
              <rom name="epr-10436.2" size="32768" crc="96c76613" sha1="fe3e4e649fd2cb2453eec0c92015bd54b3b9a1b5" region="n7751data" offset="8000"/>
              <chip type="cpu" tag="maincpu" name="68000" clock="10000000"/>
              <chip type="cpu" tag="soundcpu" name="Z80" clock="4000000"/>
              <chip type="cpu" tag="n7751" name="N7751" clock="6000000"/>
              <chip type="audio" tag="mono" name="Speaker"/>
              <chip type="audio" tag="ymsnd" name="YM2151" clock="4000000"/>
              <chip type="audio" tag="dac" name="DAC"/>
              <display tag="screen" type="raster" rotate="0" width="320" height="224" refresh="60.000000" pixclock="5376240" htotal="342" hbend="0" hbstart="320" vtotal="262" vbend="0" vbstart="224" />
              <sound channels="1"/>
              <input players="2" buttons="3" coins="2" service="yes">
                     <control type="joy" ways="8"/>
              <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"/>
              <dipswitch name="Continues" tag="DSW2" mask="1">
                     <dipvalue name="Only before level 5" value="1"/>
                     <dipvalue name="Unlimited" value="0" default="yes"/>
              <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="3" value="12" default="yes"/>
                     <dipvalue name="4" value="8"/>
                     <dipvalue name="5" value="4"/>
                     <dipvalue name="240 (Cheat)" value="0"/>
              <dipswitch name="Bonus Life" tag="DSW2" mask="48">
                     <dipvalue name="10000" value="32"/>
                     <dipvalue name="20000" value="48" default="yes"/>
                     <dipvalue name="40000" value="16"/>
                     <dipvalue name="None" value="0"/>
              <dipswitch name="Time Adjust" tag="DSW2" mask="192">
                     <dipvalue name="70" value="128"/>
                     <dipvalue name="60" value="192" default="yes"/>
                     <dipvalue name="50" value="64"/>
                     <dipvalue name="40" value="0"/>
              <driver status="good" emulation="good" color="good" sound="good" graphic="good" savestate="supported" palettesize="6144"/>

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