game
icon
title DJ Boy (Japan)
set name djboyj
manufacturer Kaneko (Sega license)
year 1989
genre Fighter (hof)
category Fighter / 2.5D (hof)
driver status good
driver source djboy.c
snapshots MW: in game | parent / CT: | parent / PS: in game | parent
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rating

61.6% after 20 votes
 
parent DJ Boy (set 1)
other clones DJ Boy (set 2)
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display
colour emulation good
palette 512
display type raster
orientation horizontal
resolution 256x224
frequency 60.000000Hz
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sound
sound emulation good
channels mono
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controls
players 2
nplayers 2P sim
controls 8 way joystick
buttons 3
coin slots 2
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hardware
cpu Z80 @ 6MHz
cpu Z80 @ 6MHz
cpu Z80 @ 6MHz
audio YM2203 @ 3MHz
audio OKI6295 @ 1.5MHz
audio OKI6295 @ 1.5MHz
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data
version added .105u2
last change(s) none
roms
name size crc set flags sha1
bs12.4b  131072  0971523e  djboyj    f90cd02cedf8632f4b651de7ea75dc8c0e682f6e 
bs100.4d  131072  081e8af8  djboy    3589dab1cf31b109a40370b4db1f31785023e2ed 
bs13.5y  65536  5c3f2f96  djboyj    bb7ee028a2d8d3c76a78a29fba60bcc36e9399f5 
bs101.6w  131072  a7c85577  djboy    8296b96d5f69f6c730b7ed77fa8c93496b33529c 
bs200.8c  131072  f6c19e51  djboy    82193f71122df07cce0a7f057a87b89eb2d587a1 
bs000.1h  524288  be4bf805  djboy    a73c564575fe89d26225ca8ec2d98b6ac319ac18 
bs001.1f  524288  fdf36e6b  djboy    a8762458dfd5201304247c113ceb85e96e33d423 
bs002.1d  524288  c52fee7f  djboy    bd33117f7a57899fd4ec0a77413107edd9c44629 
bs003.1k  524288  ed89acb4  djboy    611af362606b73cd2cf501678b463db52dcf69c4 
bsxx.1b  65536  22c8aa08  djboyj    5521c9d73b4ee82a2de1992d6edc7ef62788ad72 
bs004.1s  524288  2f1392c3  djboy    1bc3030b3612766a02133eef0b4d20013c0495a4 
bs005.1u  524288  46b400c4  djboy    35f4823364bbff1fc935994498d462bbd3bc6044 
bs-204.5j  262144  510244f0  djboyj    afb502d46d268ad9cd209ae1da72c50e4e785626 
bs-204.5j  262144  510244f0  djboyj    afb502d46d268ad9cd209ae1da72c50e4e785626 
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cabinet art
control panel djboy.png
flyer djboy.png
PCB djboy.png
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additional information
info 0.74u2 [Phil Stroffolino]

0.70 [Phil Stroffolino]

TEST MODE:
  • Select 'Service Mode' in the dipswitch menu and press reset. Press P1 Button 3 to advance past color pattern and use Buttons 1, 2 and 3 to select and play sound/music.
NOTE:
  • The sequel to DJ Boy is B.Rap Boys (Kaneko 1992).
Bugs:
  • The 2nd stage boss dissapears and can't go ahead from there in some cases. djboy0116u4yel hammad
WIP:
  • 0.119u3: David Haywood added clone DJ Boy (set 2).
  • 23rd August 2007: Phil Stroffolino - DJ Boy protection wasn't that bad in retrospect. While reverse engineering the protection was a necessary ingredient to emulating the game, there was also an unrelated memory map but that caused one of the 3 Z80s to behave badly and crash. For some time, I'd assumed that this bad behavior was related to protection - it wasn't until I after I'd disassembled and traced through all protection-related routines and surrounding code that I found and fixed that bug - the remaining pieces fell into place fairly quickly (the new level2 lockup bug not withstanding). Another catalyst was extracting the human readable text from the ROMs - in most games, they are encoded as ASCII, but for DJ-boy the tile indices for A..Z didn't have this mapping, and so weren't viewable as plain-text without an adjustment. Being able to see various bits of text and how/when they are used makes it a lot easier to locate and identify important routines (like coining up, etc.).
  • 0.117u1: David Haywood fixed some problems in the Pandora emulation which improves the sprites in Djboy.
  • 0.117: David Haywood moved "Pandora" sprite chip implementation to its own file. Updated Snow Bros, Air Buster, DJ Boy and Heavy Unit to use ths new generic implementation. Fixed gfx1/2 rom loading.
  • 0.116u4: Phil Stroffolino updated the djboy driver - Game now playable. Support for DJ Boy (Japan); same MCU, but ROM banking bits need to be XOR'd. Fixed state handling for game over/win transitions. Fixes for dipswitches. Added coinage support.
  • 0.116u3: Phil Stroffolino updated DJ Boy driver to almost fully playable state. Changed clock speed of the 2x OKI6295 to 1.5MHz. Fixed dipswitches.
  • 0.105u2: Added clone DJ Boy (Japan).
  • 0.104: Phil Stroffolino updated DJ Boy driver with more protection information.
  • 17th January 2006: Tomasz Slanina - Actually i'm working on DJ Boy (trojans).
  • 12th January 2006: Guru - DJ Boy arrived (a donation from Karasu).
  • 14th October 2005: Tomasz Slanina - Just got a DJ Boy PCB for rom redump, hardware analyse and protection break.
  • 0.95u6: Sonikos fixed OKI frequency in DJ Boy. Changed clock speed of the 2x OKI6295 to 12121 Hz.
  • 0.74u2: Added DJ Boy (Kaneko 1989).
  • 0.70: Phil Stroffolino added DJ Boy (Testdriver). You must manually reset (F3) after booting up to proceed. There's likely an unemulated hardware watchdog. Video hardware and sound should both be mostly correct. There's still some missing protection and/or exotic CPU communication.
  • 6th June 2003: Phil Stroffolino sent in some improvements to DJ Boy but it's still not playable because of unemulated protection.
  • 8th November 2002: Phil Stroffolino sent in a preliminary driver for DJ Boy, but it doesn't work at all yet.
Recommended Games (Roller):

Fighting Roller

Top Roller

Roller Jammer

Mayhem 2002

720 Degrees

DJ Boy

Rollergames

B.Rap Boys

Riding Fight

Top Skater

Romset: 4224 kb / 14 files / 1.40 zip
history DJ Boy [Cocktail model] (c) 1989 Kaneko.


A funny roller-skating beat'em up game. You must recover DJ's stolen boom box through 5 different neighborhoods. Collect the musical notes that appear from the defeated baddies to earn stars, which when accumulated, earn extra lives.


- TECHNICAL -


Main CPU : (3x) Z80 (@ 6 Mhz)

Sound Chips : YM2203 (@ 3 Mhz), (2x) OKI6295 (@ 12.121 Khz)


Screen orientation : Horizontal

Video resolution : 256 x 224 pixels

Screen refresh : 60.00 Hz

Palette colors : 512


Players : 2

Control : 8-way joystick

Buttons : 3

=> [A] Punch, [B] Kick, [C] Jump


- TRIVIA -


Also released as "DJ Boy [Upright model]"


The Japanese version is licensed to Sega.

The non-Japanese version is licensed to American Sammy.


The dance that the player character does is from Michael Jackson's live performances of the song 'Billie Jean'.


- UPDATES -


The Japanese version features Japanese musician Demon Kogure as the voice of the disc jockey.


The non-Japanese version features American DJ 'Wolfman Jack' (real name : Robert Weston Smith), who died in 1995, as the voice of the disc jockey.


- SERIES -
  1. DJ Boy [Upright model] (1989)
  2. DJ Boy [Cocktail model] (1989)
  3. B.Rap Boys (1992)
    4. - STAFF -
    • Staff : A. Funatsu, A. Yasaki, K. Matsuoka, Y. Mabuchi, M. Yukumoto, T. Watanabe, S. Aizu, H. Nagayoshi, H. Mikami, T. Katou, Y. Itou, K. Niihara
    • - PORTS -
    • * Consoles :
    • Sega Megadrive (1990)
    • - SOURCES -
    • Game's rom.
    • Machine's picture.
    • Edit this entry at Arcade-History.com: http://www.arcade-history.com/?n=dj-boy-cocktail-model&page=detail&id=21240&o=2
resource links view in MAWS
view in CAESAR
view high score and replay at MARP
view in Progetto EMMA (Italian)
view in arcade-history.com
view in arcade-history.com
view in GameFAQs
view in KLOV
view in MamEnd
view in System16
view in The Arcade Flyer Archive
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cheats
cheats
code comments
21600000:7761:00C34E72:FFFFFFFF  Infinite Lives
01010000:D746:0000000A:FFFFFFFF  Infinite Lives (2/3):Pt 1 ROM code to fix the issue when the player loses more Lives than he should have, Pt 2 RAM location for PL1
01010000:D747:0000000A:FFFFFFFF  Infinite Lives (3/3):RAM location for PL2
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