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offtwall: MAME ROM Information.


Off The Wall (c) 1991 Atari Games.

Atari's superb variant on "Breakout" has up to 3 players bouncing balls, breaking bricks, and ultimately trying to get the ball into the exit. Also includes multiplayer 'bonus rounds' where players compete to be the last man standing in a "Pong" match.


Game ID : 136090

Main CPU : 68000 (@ 7.15909 Mhz), M6502 (@ 1.7895 Mhz)

Sound Chips : YM2151 (@ 3.579 Mhz)

Screen orientation : Horizontal

Video resolution : 336 x 240 pixels

Screen refresh : 60.00 Hz

Palette Colors : 2048

Players : 3

Control : dial

Buttons : 4


Released in October 1991.

If a ball is kept in play long enough, the speed meter will go up to 'Hyper Speed', 'Ludicrous Speed', and 'They've Gone Plaid!' - all references to Mel Brooks' Star Wars parody, 'Spaceballs'.


Team Leader : John Ray (JMR?)

Music : John Paul (JFP)

SFX : Brad Fuller (BAF)

Others from highscore table : (RI ), (GAM), (ES ), Kelly Turner (KFT), Norm Avellar (NLA), (JMM), Kris Moser (KEM), (GFM), Sam Comstock (SWC), (PAT), Tim Hubberstey (TJH)


* Consoles :

Nec PC-Engine (unreleased prototype)

Sega Game Gear (unreleased prototype)


Game's rom.

Machine's picture.

MAME Info:

0.36b3 [Aaron Giles]

Artwork available


- offtwall, offtwalc: In "service" mode, the menu has lost its color. This makes it so you cannot see what selection is highlighted. Previous versions of MAME do not exhibit this problem. Darkk (ID 00784)


- 0.146: hap fixed atarivc_eof tag and shortened playfield_upper(15 chars) tag to playfield_up.

- 0.139u3: Aaron Giles moved the old hard-coded EEPROM data out into a file in Off the Wall.

- 0.139u1: Aaron Giles changed atarigen_state to be a base class from which all the related Atari drivers derive their state from.

- 0.135u4: Some more Atari driver shuffling [Aaron Giles]: Added atarigen_init() function which allocates all timers and registers for save states. Updated all drivers to call it. Converted some drivers to use device timers.

- 0.135u3: Aaron Giles converted atari drivers over to using driver_data for the most part. Some shared systems still exist with globals, but this tackles the atarigen module and the variables local to each driver.

- 0.133u1: Renamed (offtwalc) to (offtwallc).

- 0.122u4: Changed M6502 CPU2 clock speed to 1789772 Hz and YM2151 to 3579545 Hz.

- 0.114u2: Aaron Giles and Couriersud added more accurate video timing to most of the Atari 68000-era games. The parameters are from published specs, not derived. The board uses a VAD chip to generate video signals. Changed VSync to 59.922743 Hz.

- 0.114: Couriersud added general save state support to the atarijsa and atarigen modules.

- 26th August 2006: Mr. Do - Added Off the Wall bezel from MAME.net and Mean Arena. Some of these decent stuff are so-so; some are REALLY good.

- 0.97u4: David Haywood fixed Atari Audio Board II (sndhrdw\atarijsa.c) for games without OKI6295 sound.

- 0.95u3: Removed OKI6295 sound (because of the 0.93 Sound System update).

- 0.93: Added OKI6295 (9037Hz) sound.

- 0.37b15: Changed M6502 CPU2 clock speed to 1789500 and YM2151 to 3579000 Hz.

- 0.36RC1: Changed 68000 CPU1 clock speed to 7159090 Hz, M6502 CPU2 to 1789772 Hz and YM-2151 to 3579545 Hz.

- 0.36b5: Changed input to Dial. Added 'Controls' dipswitch.

- 6th September 1999: Aaron Giles sent in a huge Bally/Sente driver, with Chicken Shift, Gimme a Break, Goalie Hhost, Hat Trick, Mini Golf, Night Stocker, Off the Wall, Rescue Raider, Sente Diagnostics Cartridge, Snacks'n Jaxson, Stocker, Street Football, Toggle and Trivial Pursuit. There are still more games running on this hardware.

- 0.36b3: Aaron Giles added Off the Wall (2/3-player upright) (Atari Games 1991) and clone (2-player cocktail).

- 8th August 1999: Aaron Giles sent in a driver for Off the Wall.

Recommended Games (Breakout):

Gee Bee

Super Breakout

Tournament Table

Bomb Bee

Cutie Q

Field Goal

Straight Flush

Wall Crash

Cannon Ball (Pacman Hardware)

Flying Ball (DECO Cassette)



Tournament Arkanoid

Arkanoid - Revenge of DOH

Arkanoid Returns


Gigas Mark II

Riddle of Pythagoras

Block Gal

Free Kick

Super Free Kick


Mahjong Block Jongbou



Thunder & Lightning

Block Block


Off the Wall

Twin Squash

Block Carnival / Thunder & Lightning 2

Play Girls



Wiggie Waggie

Cuby Bop

Zip & Zap

Bal Cube

Domino Block

Pop 'n Bounce

Puchi Carat

Puzzle Break

VS Block Breaker


Mad Ball

Jumping Break

The Block Kuzushi


Romset: 1092 kb / 10 files / 407.2 zip

MAME XML Output:

       <game name="offtwall" sourcefile="offtwall.c">
              <description>Off the Wall (2/3-player upright)</description>
              <manufacturer>Atari Games</manufacturer>
              <rom name="otw2012.bin" size="131072" crc="d08d81eb" sha1="5a72aa2e4fc6455b94aa59a7719d0ddc8bcc80f2" region="maincpu" offset="0"/>
              <rom name="otw2013.bin" size="131072" crc="61c2553d" sha1="343d39f9b75fd236e9769ec21ab65310f85e31ca" region="maincpu" offset="1"/>
              <rom name="otw1020.bin" size="65536" crc="488112a5" sha1="55e84855daacfa303d1031de8c9adb992a846e21" region="jsa" offset="10000"/>
              <rom name="otw1014.bin" size="131072" crc="4d64507e" sha1="cb2ac41aecd2702cd57c746a6f5986cd753bc29e" region="gfx1" offset="0"/>
              <rom name="otw1016.bin" size="131072" crc="f5454f3a" sha1="87d82bd227f7fcfd13b6f4ad88a573d1b96a4fc1" region="gfx1" offset="20000"/>
              <rom name="otw1018.bin" size="131072" crc="17864231" sha1="22f93fcb5d413281157ab8545647f3713f98c135" region="gfx1" offset="40000"/>
              <rom name="otw1015.bin" size="131072" crc="271f7856" sha1="928bc5e7dc589ceb5f55e536b5a05c3866116a24" region="gfx1" offset="60000"/>
              <rom name="otw1017.bin" size="131072" crc="7f7f8012" sha1="1123ea3c6cd2c73617a87d6a5bbb26fca8941af3" region="gfx1" offset="80000"/>
              <rom name="otw1019.bin" size="131072" crc="9efe511b" sha1="db1f1d8792bf497bc9ad652b0b7d78c3abf0e817" region="gfx1" offset="a0000"/>
              <rom name="offtwall-eeprom.bin" size="4096" crc="73dc2139" sha1="28ee9be4b5a65708a4f3e7d88e98af15cd9badca" region="eeprom" offset="0"/>
              <chip type="cpu" tag="maincpu" name="68000" clock="7159090"/>
              <chip type="cpu" tag="jsa" name="M6502" clock="1789772"/>
              <chip type="audio" tag="mono" name="Speaker"/>
              <chip type="audio" tag="ymsnd" name="YM2151" clock="3579545"/>
              <display tag="screen" type="raster" rotate="0" width="336" height="240" refresh="59.922743" pixclock="7159090" htotal="456" hbend="0" hbstart="336" vtotal="262" vbend="0" vbstart="240" />
              <sound channels="1"/>
              <input players="3" buttons="4" coins="2" service="yes" tilt="yes">
                     <control type="joy" ways="8"/>
                     <control type="dial" minimum="0" maximum="255" sensitivity="50" keydelta="10" reverse="yes"/>
              <dipswitch name="Controls" tag="260010" mask="2">
                     <dipvalue name="Whirly-gigs" value="0" default="yes"/>
                     <dipvalue name="Joysticks" value="2"/>
              <dipswitch name="Service Mode" tag="260010" mask="64">
                     <dipvalue name="Off" value="64" default="yes"/>
                     <dipvalue name="On" value="0"/>
              <driver status="good" emulation="good" color="good" sound="good" graphic="good" savestate="unsupported" palettesize="2048"/>

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