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welltris: MAME ROM Information.


Alexey Pajitnov's Welltris (c) 1991 Video System.

A fun and addicting puzzle game from the creator of the hugely popular "Tetris".


Main CPU : 68000 (@ 10 Mhz)

Sound CPU : Z80 (@ 4 Mhz)

Sound Chips : YM2610 (@ 8 Mhz)

Screen orientation : Horizontal

Video resolution : 352 x 240 pixels

Screen refresh : 60.00 Hz

Palette colors : 2048

Players : 2

Control : 8-way joystick

Buttons : 2 (TURN, DROP)


This arcade game is a port from an original computer game released in 1989 on the Atari ST.


* Computers :

Commodore Amiga (1992, "Action Masters")


Game's rom.

MAME Info:

0.96u3 [Aaron Giles]

0.57 [David Haywood]

< Japan >


- 0.136u2: Atari Ace converted Welltris driver to use driver_data structure.

- 0.133u1: Renamed (welltrij) to (welltrisj).

- 0.127u3: Dazzer redumped Welltris bad program roms. Added main roms ($0,1).

- 0.96u3: Aaron Giles added Welltris (World?, 2 players). Renamed (welltris) to (welltrij).

- 0.74: Removed 2nd sound channel.

- 0.61: Changed description to 'Welltris (Japan, 2 players)'.

- 0.58: Fixed sound1/2 rom loading - Sound works now. Changed description to 'Welltris (Japan, 2 Players)'. Removed 3rd and 4th player. Added dipswitches 'Coin A/B', 'Difficulty', 'Coin Mode', 'Demo Sounds', 'Flip Screen' and 'Service Mode'.

- 13th January 2002: David Haywood fixed dipswitch settings and added sound emulation to the Welltris driver.

- 0.57: David Haywood added Welltris (Japan) (Video System 1991).

- 13th December 2001: David Haywood sent in a preliminary driver for Welltris, which works but without sound.

LEVELS: 9999 (endless)

Other Emulators:

* FB Alpha

Recommended Games (Tetris):

Vs. Tetris

Tetris (Atari)

Tetris (Sega)

Tetris (Mega-Tech)

Tetris (Mirrorsoft bootleg)

Tetris (System E)

Tetris / Bloxeed (Korean System 16 bootleg)



Tetris (Photon System)

Final Tetris

Hot Blocks - Tetrix II

Magix / Rock

Tetris (D.R. Korea)

Tetris Plus

Tetris Plus 2

Magical Tetris Challenge

Tetris The Grand Master

Tetris the Absolute The Grand Master 2

Sega Tetris

Tetris Kiwamemichi


Block Out


Romset: 3456 kb / 11 files / 1.67 zip

MAME XML Output:

       <game name="welltris" sourcefile="welltris.c">
              <description>Welltris (World?, 2 players)</description>
              <manufacturer>Video System Co.</manufacturer>
              <rom name="j2u.8" size="131072" crc="7488fe94" sha1="41874366e2ab763cd827ff712b76ea2da0f9af6a" region="maincpu" offset="0"/>
              <rom name="j1u.7" size="131072" crc="571413ac" sha1="5eb9387efb9c1597005abff4d79f4b32aa7c93b2" region="maincpu" offset="1"/>
              <rom name="lh532j10.10" size="262144" crc="1187c665" sha1="c6c55016e46805694348b386e521a3ef1a443621" region="maincpu" offset="100000"/>
              <rom name="lh532j11.9" size="262144" crc="18eda9e5" sha1="c01d1dc6bfde29797918490947c89440b58d5372" region="maincpu" offset="100001"/>
              <rom name="3.144" size="131072" crc="ae8f763e" sha1="255419e02189c2e156c1fbcb0cd4aedd14ed8ffa" region="audiocpu" offset="0"/>
              <rom name="lh534j12.77" size="524288" crc="b61a8b74" sha1="e17f7355375bdc166ef8131f7de9dbda5453f570" region="gfx1" offset="0"/>
              <rom name="046.93" size="262144" crc="31d96d77" sha1="5613ef9e9e38406b4e64fc8983ea50b57613923e" region="gfx2" offset="0"/>
              <rom name="048.94" size="262144" crc="bb4643da" sha1="38d54f8c3dba09b528df05d748ab5bdf5d028453" region="gfx2" offset="40000"/>
              <rom name="lh534j11.126" size="524288" crc="bf85fb0d" sha1="358f91bbff2d3260f83b5a0422c0d985d1735cef" region="ymsnd.deltat" offset="0"/>
              <rom name="lh534j09.123" size="524288" crc="6c2ce9a5" sha1="a4011ecfb505191c9934ba374933cd11b331d55a" region="ymsnd" offset="0"/>
              <rom name="lh534j10.124" size="524288" crc="e3682221" sha1="3e1cda07cf451955dc473eabe007854e5148ae27" region="ymsnd" offset="80000"/>
              <chip type="cpu" tag="maincpu" name="68000" clock="10000000"/>
              <chip type="cpu" tag="audiocpu" name="Z80" clock="4000000"/>
              <chip type="audio" tag="mono" name="Speaker"/>
              <chip type="audio" tag="ymsnd" name="YM2610" clock="8000000"/>
              <display tag="screen" type="raster" rotate="0" width="352" height="240" refresh="60.000000" />
              <sound channels="1"/>
              <input players="2" buttons="2" coins="4" tilt="yes">
                     <control type="joy" ways="8"/>
              <dipswitch name="Coin A" tag="DSW1" mask="15">
                     <dipvalue name="5 Coins/1 Credit" value="6"/>
                     <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="2-1, 4-2, 5-3, 6-4" value="4"/>
                     <dipvalue name="2-1, 4-3" value="3"/>
                     <dipvalue name="1 Coin/1 Credit" value="15" default="yes"/>
                     <dipvalue name="1-1, 2-2, 3-3, 4-5" value="1"/>
                     <dipvalue name="1-1, 2-2, 3-3, 4-4, 5-6" value="2"/>
                     <dipvalue name="1-1, 2-3" value="0"/>
                     <dipvalue name="2 Coins/3 Credits" value="5"/>
                     <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"/>
              <dipswitch name="Coin B" tag="DSW1" mask="240">
                     <dipvalue name="5 Coins/1 Credit" value="96"/>
                     <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="2-1, 4-2, 5-3, 6-4" value="64"/>
                     <dipvalue name="2-1, 4-3" value="48"/>
                     <dipvalue name="1 Coin/1 Credit" value="240" default="yes"/>
                     <dipvalue name="1-1, 2-2, 3-3, 4-5" value="16"/>
                     <dipvalue name="1-1, 2-2, 3-3, 4-4, 5-6" value="32"/>
                     <dipvalue name="1-1, 2-3" value="0"/>
                     <dipvalue name="2 Coins/3 Credits" value="80"/>
                     <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"/>
              <dipswitch name="Difficulty" tag="DSW2" mask="3">
                     <dipvalue name="Easy" value="2"/>
                     <dipvalue name="Normal" value="3" default="yes"/>
                     <dipvalue name="Hard" value="1"/>
                     <dipvalue name="Hardest" value="0"/>
              <dipswitch name="Coin Mode" tag="DSW2" mask="4">
                     <dipvalue name="Mono Player" value="4"/>
                     <dipvalue name="Many Player" value="0" default="yes"/>
              <dipswitch name="Demo Sounds" tag="DSW2" mask="8">
                     <dipvalue name="Off" value="0"/>
                     <dipvalue name="On" value="8" default="yes"/>
              <dipswitch name="DIPSW 2-5 (unused)" tag="DSW2" mask="16">
                     <dipvalue name="Off" value="16" default="yes"/>
                     <dipvalue name="On" value="0"/>
              <dipswitch name="DIPSW 2-6 (unused)" tag="DSW2" mask="32">
                     <dipvalue name="Off" value="32" default="yes"/>
                     <dipvalue name="On" value="0"/>
              <dipswitch name="Flip Screen" tag="DSW2" mask="64">
                     <dipvalue name="Off" value="64" default="yes"/>
                     <dipvalue name="On" value="0"/>
              <dipswitch name="Service Mode" tag="DSW2" mask="128">
                     <dipvalue name="Off" value="128" default="yes"/>
                     <dipvalue name="On" value="0"/>
              <driver status="good" emulation="good" color="good" sound="good" graphic="good" cocktail="preliminary" savestate="unsupported" palettesize="2048"/>

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