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comotion: MAME ROM Information.


CoMotion (c) 1976 Gremlin.

This game was for two or four players only, you must have a live human opponent to play against, or else the other players character will go straight into a wall, making for a very quick and boring game. Each player moves their character around leaving a solid line behind them. All moves are made on an invisible grid, so you can only turn at 90 degree angles. To win you must last longer than your opponents before hitting something. Each player is eliminated when they crash, taking their lines with them. One good strategy is to turn around and head for the outer area of the screen (in four player mode), because everyone starts out headed for the center. Skirt around the edges until you only have one opponent left, then box them in. Pushing backwards on the stick will cause you to crash into your own line, so avoid that at all cost.


Prom stickers : 5-10

Main CPU : 8080 (@ 2.079 Mhz)

Sound Chips : Samples (@ 2.079 Mhz), Discrete (@ 2.079 Mhz)

Screen orientation : Horizontal

Video resolution : 256 x 224 pixels

Screen refresh : 60.00 Hz

Palette Colors : 2

Players : 4

Control : 4-way joystick


Released in October 1976.

This game came in only one form factor, that of the standup cocktail (a format that was really only used in the 70s). The machine was a round table about 4 feet tall. The table top was wood grained, and it had four sets of player controls spaced evenly around the table. The monitor was located inside the table facing upwards. This game had simple sideart that consisted of a few stripes and a 'Comotion' logo (the logo snaked around much like the games characters did). The game featured control panels that were devoid of joysticks, instead you controlled the game using a button for each direction. Two people could play for twenty five cents, or four people could play for fifty cents. The prices were hard coded into the games romset, so operators really couldn't mess with them (the games title screen clearly said "'25 cents for two players, 50 cents for four players').


1. Blockade (1976)

2. Comotion (1976)

3. Hustle (1977)


Game's rom.

Machine's picture.

MAME Info:

0.31 [Frank Palazzolo]

Samples required (Blockade)


- 0.141u3: hap fixed overlay color looks wrong compared to game flyers in Comotion.

- 0.92: Frank Palazzolo added discrete sound to Comotion. Fixed cpu1/gfx1 rom loading.

- 0.36b14: Changed palettesize to 2 colors.

- 0.31: Frank Palazzolo added Comotion (Gremlin 1976). Comotion support is complete with the exception of the square wave music.

- 28th March 1998: Dumped Comotion.

Recommended Games (Tron):


Bigfoot Bonkers











Romset: 5 kb / 6 files / 2.42 zip

MAME XML Output:

       <game name="comotion" sourcefile="blockade.c" sampleof="blockade">
              <rom name="316-07.u2" size="1024" crc="5b9bd054" sha1="324b844788945e7bc82d096d6d375e79e3e1a634" region="maincpu" offset="0"/>
              <rom name="316-08.u3" size="1024" crc="1a856042" sha1="91bdc260e8c88ce2b6ac05bfba043ed611bc30de" region="maincpu" offset="0"/>
              <rom name="316-09.u4" size="1024" crc="2590f87c" sha1="95a7af04b610d79fb3f6d74dda322e66164b9484" region="maincpu" offset="400"/>
              <rom name="316-10.u5" size="1024" crc="fb49a69b" sha1="4009c3256a86508d981c1f77b65e6bff1face1e7" region="maincpu" offset="400"/>
              <rom name="316-06.u43" size="256" crc="8f071297" sha1="811471c87b77b4b9ab056cf0c0743fc2616b754c" region="gfx1" offset="0"/>
              <rom name="316-05.u29" size="256" crc="53fb8821" sha1="0a499aa4cf15f7ebea155aacd914de8851544215" region="gfx1" offset="0"/>
              <sample name="boom"/>
              <chip type="cpu" tag="maincpu" name="8080" clock="2079000"/>
              <chip type="audio" tag="mono" name="Speaker"/>
              <chip type="audio" tag="samples" name="Samples"/>
              <chip type="audio" tag="discrete" name="DISCRETE"/>
              <display tag="screen" type="raster" rotate="0" width="256" height="224" refresh="60.000000" />
              <sound channels="1"/>
              <input players="4" coins="1">
                     <control type="joy" ways="4"/>
              <configuration name="Boom Switch" tag="IN0" mask="4">
                     <confsetting name="Off" value="0"/>
                     <confsetting name="On" value="4" default="yes"/>
              <configuration name="Lives" tag="IN0" mask="8">
                     <confsetting name="3" value="0" default="yes"/>
                     <confsetting name="4" value="8"/>
              <driver status="imperfect" emulation="good" color="good" sound="imperfect" graphic="good" savestate="supported" palettesize="2"/>

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