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mp_soni2: MAME ROM Information.


Sonic The Hedgehog 2 [Mega-Play 07] (c) 1993 Sega.

The nefariously evil scientist Dr. Ivo Robotnik is at it again with his demented goal to conquer the world by forcing innocent animals to become evil 'badniks' (robots), and only one speedy hedgehog is eager enough to put a stop to Robotnik's scheme and his name is Sonic The Hedgehog. and this time he's not alone, Miles Prower (miles per hour, get it?). The Fox who's commonly known as 'Tails' because he has 2 tails which enable him to fly has decided to tag along with Sonic in order to bring peace back to the planet.


Main CPU : 68000 (@ 7.670442 Mhz), (2x) Z80 (@ 3.57954 Mhz)

Sound Chips : YM3438 (@ 7.670442 Mhz), (2x) SN76496 (@ 3.57954 Mhz)

Screen orientation : Horizontal

Video resolution : 320 x 224 pixels

Screen refresh : 60.00 Hz

Palette colors : 96

Players : 2

Control : 8-way Joystick

Buttons : 3


Unlike the Sega Genesis version of Sonic The Hedgehog 2, the Mega-Play port has several differences such as the omission of the timer.

Official Sega Mega-Play releases list :

[Mega-Play 01] Sonic The Hedgehog

[Mega-Play 02] Golden Axe II

[Mega-Play 03] Grand Slam - The Tennis Tournament

[Mega-Play 04] Tecmo World Cup

[Mega-Play 05] Streets Of Rage 2

[Mega-Play 06] Bio-Hazard Battle

[Mega-Play 07] Sonic The Hedgehog 2

[Mega-Play 08] ???

[Mega-Play 09] Shinobi III - Return of the Ninja Master

[Mega-Play 10] ???

[Mega-Play 11] Mazin Wars

[Mega-Play ??] Columns III - Revenge of Columns

[Mega-Play ??] Gunstar Heroes


Game's rom.

MAME Info:

0.95u1 [David Haywood]


- "coin interface" from megaplay remains on-screen and credits never decrease. LastNinja2 (ID 02082)


- 0.95u2: Barry Rodewald changed 'Difficulty' dipswitch to 'Initial Players (Dual mode)'.

- 0.95u1: David Haywood added Sonic The Hedgehog 2 (Mega Play) (Sega 1993). Some problems due to bad genesis emulation.

Recommended Games (Sonic):

Sonic The Hedgehog (Mega Play)

Sonic The Hedgehog (Mega-Tech)

Sonic The Hedgehog 2 (Mega Play)

Sonic The Hedgehog 2 (Mega-Tech)

SegaSonic The Hedgehog

Sonic Championship

Romset: 1056 kb / 2 files / 733.0 zip

MAME XML Output:

       <game name="mp_soni2" sourcefile="megaplay.c" romof="megaplay">
              <description>Sonic The Hedgehog 2 (Mega Play)</description>
              <biosset name="ver1" description="Megaplay Bios (Ver. 1)" default="yes"/>
              <biosset name="ver2" description="Megaplay Bios (Ver. 2)"/>
              <rom name="ep15294.ic2" merge="ep15294.ic2" bios="ver1" size="131072" crc="aa8dc2d8" sha1="96771ad7b79dc9c83a1594243250d65052d23176" region="mtbios" offset="0"/>
              <rom name="epr-a15294.ic2" merge="epr-a15294.ic2" bios="ver2" size="131072" crc="f97c68aa" sha1="bcabc879950bca1ced11c550a484e697ec5706b2" region="mtbios" offset="0"/>
              <rom name="mpr-16011.ic1" size="1048576" crc="3d7bf98a" sha1="dce0e4e8f2573e0ffe851edaa235e4ed9e61ee2d" region="maincpu" offset="0"/>
              <rom name="epr-15175-07.ic1" size="32768" crc="bb5f67f0" sha1="33b7a5d14015a5fcf41976a8f648f8f48ce9bb03" region="user1" offset="0"/>
              <chip type="cpu" tag="maincpu" name="68000" clock="7670453"/>
              <chip type="cpu" tag="genesis_snd_z80" name="Z80" clock="3579545"/>
              <chip type="cpu" tag="mtbios" name="Z80" clock="3579540"/>
              <chip type="audio" tag="lspeaker" name="Speaker"/>
              <chip type="audio" tag="rspeaker" name="Speaker"/>
              <chip type="audio" tag="ymsnd" name="YM2612" clock="7670453"/>
              <chip type="audio" tag="snsnd" name="SEGA VDP PSG" clock="3579545"/>
              <chip type="audio" tag="sn2" name="SN76496" clock="3579540"/>
              <display tag="megadriv" type="raster" rotate="0" width="256" height="224" refresh="60.000000" />
              <sound channels="2"/>
              <input players="2" buttons="4" coins="2" service="yes">
                     <control type="joy" ways="8"/>
              <dipswitch name="Coin slot 1" tag="DSW0" 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 coins/3 credits - 6 coins/4 credits" value="5"/>
                     <dipvalue name="2 coins/1 credit - 4 coins/3 credits" value="4"/>
                     <dipvalue name="1 Coin/1 Credit" value="15" default="yes"/>
                     <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="1 coin/1 credit - 5 coins/6 credits" value="3"/>
                     <dipvalue name="1 coin/1 credit - 4 coins/5 credits" value="2"/>
                     <dipvalue name="1 coin/1 credit - 2 coins/3 credits" value="1"/>
                     <dipvalue name="Free Play" value="0"/>
              <dipswitch name="Coin slot 2" tag="DSW0" 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 coins/3 credits - 6 coins/4 credits" value="80"/>
                     <dipvalue name="2 coins/1 credit - 4 coins/3 credits" value="64"/>
                     <dipvalue name="1 Coin/1 Credit" value="240" default="yes"/>
                     <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="1 coin/1 credit - 5 coins/6 credits" value="48"/>
                     <dipvalue name="1 coin/1 credit - 4 coins/5 credits" value="32"/>
                     <dipvalue name="1 coin/1 credit - 2 coins/3 credits" value="16"/>
                     <dipvalue name=" 1 coin/1 credit" value="0"/>
              <dipswitch name="Initial Players (Normal mode)" tag="DSW1" mask="3">
                     <dipvalue name="4" value="0"/>
                     <dipvalue name="3" value="1" default="yes"/>
                     <dipvalue name="2" value="2"/>
                     <dipvalue name="1" value="3"/>
              <dipswitch name="Initial Players (Dual mode)" tag="DSW1" mask="12">
                     <dipvalue name="4" value="0"/>
                     <dipvalue name="2" value="4"/>
                     <dipvalue name="1" value="8"/>
                     <dipvalue name="3" value="12" default="yes"/>
              <driver status="good" emulation="good" color="good" sound="good" graphic="good" savestate="unsupported" palettesize="512"/>

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