Home News Forum                            

Play your favorite classic games and more with the GameEx front end. Read more.

brapboys: MAME ROM Information.


B.Rap Boys (c) 1992 Kaneko.

A side scrolling beat'em up. 3 characters, one on a skateboard, one on a bike and one on rollerskates fight various enemies. Features a large amount of sampled voices and several rap songs.


Main PCB # : ZO1DK-002


Main CPU : 68000 (@ 12 Mhz)

Sound Chips : (2x) OKI6295 (@ 12 Khz)

Players : 2

Control : 8-way joystick

Buttons : 2


Released in June 1992 in Japan.


1. DJ Boy (1989)

2. B.Rap Boys (1992)


Game's rom.

Machine's picture.

MAME Info:

0.116u4 [Hammad, Brian Troha]

0.74u2 [Guru]

0.61 [Guru]


- brapboysj: [possible] You can see a big comma in black and something else written in black i cant read properly. hammad (ID 04459)


- 0.144u5: hap fixed B.Rap Boys loops on CRC check.

- 0.144u1: vintagevideogames.com and Lord Nightmare added clone B.Rap Boys Special (US). Mirror gfx1 rom ($400000 to 480000) in B.Rap Boys. Fixed rom names.

- 0.143u9: Fixed rom names.

- 0.135: David Haywood changed sound banking on B.Rap Boys to use an OKIM6295 address map and banks. Changed region samples to oki1.

- 0.134u1: Kitsune Sniper, hap, Haze and Guru fixed music samples looping incorrectly / ending too soon in B.Rap Boys and clone. Changed clock speeds of the 2x OKI6295 to 2MHz and VSync to 59.185400 Hz.

- 0.133u5: David Haywood temporarily added a hack to the collision function to only use the B.Rap Boys code if the game is B.Rap Boys until we have a single function that works with both.

- 0.133u4: David Haywood, Tomasz Slanina and Luca Elia fixed - Game now playable. Phil Bennett fixed B.Rap Boys sound banking. David Haywood and Tomasz Slanina decoded all protection data for B.Rap Boys. Tomasz Slanina improved protection simulation logic w/regards to writeback addresses, allowing B.Rap Boys to boot and added hitbox simulation based on suprnova / game requirements. Guru redumped GFX Roms. David Haywood cleaned up decryption function for B.Rap Boys external Rom, improved video emulation for B.Rap Boys, marked several GFX roms as bad on B.Rap Boys, converted MCU writes to use write_byte, added kludge to reset MCU data write address to prevent game from running out of ram and crashing, added DSWs, added EEPROM support to the B.Rap Boys protection simulation and changed to priorities to fix some visibility problems. Added new gfx1 roms ($0, 100000, 200000, 300000). Changed visible area to 256x224. Added dipswitches 'Switch Test', 'Coin Slots', 'Players', 'Difficulty' and 'Unused'.

- 0.133u3: David Haywood decrypted several tables from the B.Rap Boys rom.

- 0.133u1: Calc 3 MCU update [David Haywood]: Shuffled a few things around based on new findings. Added an extra decryption table used for the Brap Boys startup code (still doesn't do anything interesting). Noted that one of the unknown parameters for the MCU Init command is where it reads / writes EEPROM data from. Noted that an additional parameter in the MCU commands may cause further displacement of the writeback address, as BRap Boys seems to rely on this (needs further testing) - added a hack for now so that BRap Boys places the writeback address of the initial table somewhere that causes it to get executed. Renamed (brapboyj) to (brapboysj).

- 0.132u5: Changed description of clone 'B.Rap Boys (Japan)' to 'B.Rap Boys Special (Japan)'. Changed visible area to 256x240.

- 0.132u2: David Haywood improved protection simulation for B.Rap Boys, eliminating the hardcoded table with the initial program snippet in, getting it from the rom instead, and generally cleaning things up.

- 0.132u1: David Haywood improved protection simulation and documentation for B.Rap Boys.

- 0.128u1: Guru added redumped B.Rap Boys sample ROMs.

- 0.116u4: Brian Troha added B.Rap Boys (World). Renamed (brapboys) to (brapboyj).

- 28th June 2007: Hammad dumped B.Rap Boys (World). Only socketed EPROMs have been dumped, the rest are soldered MASKROMs.

- 0.112u3: Changed description to 'B.Rap Boys (Japan)'.

- 0.74u2: Added B.Rap Boys (Kaneko 1992)

- 0.61: Added B.Rap Boys (Testdriver).

- 26th August 2001: Guru - Dumped B.Rap Boys (Kaneko 1992). Thanks to Felicien for the donation.

- 18th August 2001: Guru - A 'B. Rap Boys' PCB has arrived, however Australian Customs has grabbed it and is holding me to ransom. I'm working on that, and hopefully I'll get it next week.

Recommended Games (Heroes Fighter):

Knuckle Joe

My Hero



Trojan (PlayChoice-10)


Black Panther

Double Dragon

Double Dragon II

Double Dragon 3

Double Dragon (PlayChoice-10)

Double Dragon (Neo-Geo)

Ginga NinkyouDen



Shinobi (Mega-Tech)

Shinobi / FZ-2006

The Revenge of Shinobi (Mega-Tech)

Shinobi III (Mega Play)

Bad Dudes vs. Dragonninja

Shadow Warriors


Crime Fighters


Final Fight

Gang Wars

Last Battle (Mega-Tech)

Ninja Gaiden (PlayChoice-10)

Ninja Gaiden Episode II (PlayChoice-10)

Ninja Gaiden Episode III (PlayChoice-10)

Shadow Dancer

Shadow Dancer (Mega-Tech)

Tough Turf

The Combatribes

Crude Buster


Mug Smashers

64th. Street

Brute Force

Burning Fight

Captain Commando

D. D. Crew

Karate Blazers

Riot City

Streets of Rage (Mega-Tech)

Streets of Rage II (Mega Play)


B.Rap Boys

Big Fight

Guardians of the 'Hood


Silent Dragon

Thunder Hoop

TH Strikes Back

Undercover Cops

Cadillacs and Dinosaurs

Denjin Makai

Knuckle Bash

Knuckle Bash 2

Ninja Baseball Batman

The Punisher

Violent Storm

Zero Team

Pretty Soldier Sailor Moon

Black Touch '96

Final Fight 2 (SNES bootleg)

Ghost Chaser Densei (SNES bootleg)

Iron (SNES bootleg)


Sonic Blast Man 2 Special Turbo

Gaia Crusaders

Vamp 1/2

Jue Zhan Tian Huang

Thunder Heroes

Demolish Fist

Recommended Games (Roller):

Fighting Roller

Skater (DECO Cassette)

Top Roller

Roller Jammer

Mayhem 2002

720 Degrees

DJ Boy


B.Rap Boys

Riding Fight

Top Skater

Air Trix

Romset: 12928 kb / 18 files / 4.95 zip

MAME XML Output:

       <game name="brapboys" sourcefile="kaneko16.c">
              <description>B.Rap Boys (World)</description>
              <rom name="rb-030.01.u61" size="131072" crc="ccbe9a53" sha1="b96baf0ecbf6550bfaf8e512d9275c53a3928bee" region="maincpu" offset="0"/>
              <rom name="rb-031.01.u62" size="131072" crc="c72b8dda" sha1="450e1fb8acb140fa0ab23630daad82924f7ce72b" region="maincpu" offset="1"/>
              <rom name="rb-040.00.u33" size="131072" crc="757c6e19" sha1="0f1c37b1b1eb6b230c593e4648c4302f413a61f5" region="cpu1" offset="0"/>
              <rom name="rb-020.u100" size="1048576" crc="ce220d38" sha1="b88d7c89a3e1a826bf19a1fa692ec77c944596d9" region="gfx1" offset="0"/>
              <rom name="rb-021.u76" size="1048576" crc="74001407" sha1="90002056ceb4e0401246950b8c3f996af0a2463c" region="gfx1" offset="100000"/>
              <rom name="rb-022.u77" size="1048576" crc="cb3f42dc" sha1="5415f15621924dd263b8fe7daaf3dc25d470b814" region="gfx1" offset="200000"/>
              <rom name="rb-023.u78" size="1048576" crc="0e6530c5" sha1="72bff46f0672927e540f4f3546ae533dd0a231e0" region="gfx1" offset="300000"/>
              <rom name="rb-024.u79" size="524288" crc="65fa6447" sha1="551e540d7bf412753b4a7098e25e6f9d8774bcf4" region="gfx1" offset="400000"/>
              <rom name="rb-024.u79" size="524288" crc="65fa6447" sha1="551e540d7bf412753b4a7098e25e6f9d8774bcf4" region="gfx1" offset="480000"/>
              <rom name="rb-025.01.u80" size="262144" crc="36cd6b90" sha1="45c50f2652726ded67c9c24185a71a6367e09270" region="gfx1" offset="500000"/>
              <rom name="rb-010.u65" size="1048576" crc="ffd73f87" sha1="1a661f71976be61c22d9b962850e738ba17f1d45" region="gfx2" offset="0"/>
              <rom name="rb-011.u66" size="1048576" crc="d9325f78" sha1="346832608664aa8f3ac9260a549903386b4125a8" region="gfx2" offset="100000"/>
              <rom name="rb-012.u67" size="1048576" crc="bfdbe0d1" sha1="3abc5398ee8ee1871b4d081f9b748539d69bcdba" region="gfx2" offset="200000"/>
              <rom name="rb-013.u68" size="1048576" crc="28c37fe8" sha1="e10dd1a810983077328b44e6e33ce2e899c506d2" region="gfx2" offset="300000"/>
              <rom name="rb-000.u43" size="524288" crc="58ad1a62" sha1="1d2643b5f6eac22682972a88d284e00de3e3b223" region="oki1" offset="0"/>
              <rom name="rb-003.00.u101" size="524288" crc="2cac25d7" sha1="0412c317bf650a93051b9304d23035efde0c026a" region="oki1" offset="80000"/>
              <rom name="rb-001.u44" size="1048576" crc="7cf774b3" sha1="3fb0a5096ce9480f97e311439042eb8cbc26efb4" region="oki2" offset="0"/>
              <rom name="rb-002.u45" size="1048576" crc="e4b30444" sha1="be6756dce3721226e0b7f5d4d168008c31aeea8e" region="oki2" offset="100000"/>
              <chip type="cpu" tag="maincpu" name="68000" clock="12000000"/>
              <chip type="audio" tag="mono" name="Speaker"/>
              <chip type="audio" tag="oki1" name="OKI6295" clock="2000000"/>
              <chip type="audio" tag="oki2" name="OKI6295" clock="2000000"/>
              <display tag="screen" type="raster" rotate="0" width="256" height="224" refresh="59.185400" />
              <sound channels="1"/>
              <input players="3" buttons="2" coins="3">
                     <control type="joy" ways="8"/>
              <dipswitch name="Flip Screen" tag="DSW1" mask="1">
                     <dipvalue name="Off" value="1" default="yes"/>
                     <dipvalue name="On" value="0"/>
              <dipswitch name="Service Mode" tag="DSW1" mask="2">
                     <dipvalue name="Off" value="2" default="yes"/>
                     <dipvalue name="On" value="0"/>
              <dipswitch name="Switch Test" tag="DSW1" mask="4">
                     <dipvalue name="Off" value="4" default="yes"/>
                     <dipvalue name="On" value="0"/>
              <dipswitch name="Unused" tag="DSW1" mask="8">
                     <dipvalue name="Off" value="8" default="yes"/>
                     <dipvalue name="On" value="0"/>
              <dipswitch name="Coin Slots" tag="DSW1" mask="16">
                     <dipvalue name="Separate Coins" value="16" default="yes"/>
                     <dipvalue name="Shared Coins" value="0"/>
              <dipswitch name="Players" tag="DSW1" mask="32">
                     <dipvalue name="3" value="32" default="yes"/>
                     <dipvalue name="2" value="0"/>
              <dipswitch name="Difficulty" tag="DSW1" mask="192">
                     <dipvalue name="Easy" value="128"/>
                     <dipvalue name="Normal" value="192" default="yes"/>
                     <dipvalue name="Hard" value="64"/>
                     <dipvalue name="Very Hard" value="0"/>
              <driver status="good" emulation="good" color="good" sound="good" graphic="good" savestate="unsupported" palettesize="2048"/>

emumovies.com      Retro bytes Portal           Bookmark and Share

Developed by: Spesoft  Headsoft     Terms of use     Privacy    Advertise