Note: This demo is still an early in-development build.

Dolmexica Infinite is an in-development Mugen interpreter for Dreamcast, Web and Windows.

Alternate mods with more characters:

Changes since Demo 12:

  • [Breaking legacy change] Mask parameter for stages/menu bgs (at least breaks most of my old menus)
  • [Breaking legacy change] Angle controllers now correctly use degrees instead of radians (at least breaks some of my old storyboards)
  • AI "Improvements"
  • More PlaySnd parameters
  • 480p UI (can't recommend due to Dreamcast memory limits though)
  • Camera Zoom
  • After Images (Web/Windows only; Technical limitations)
  • Ability to run without assets folder (same exe position as original Mugen)
  • ModifyExplod controller +  missing Explod parameters
  • Looping stages
  • Readd static trigger caching as optional config var (don't recommend it though)
  • Fixed up targeting triggers/controllers
  • Fight.def now completely implemented (bugs nonwithstanding)
  • Triggers now completely implemented (bugs nonwithstanding)
  • Character.cns now completely implemented (bugs nonwithstanding)
  • Supermovetime/pausetime fixed
  • Victory Quotes from Mugen 1.1
  • Destination alpha in stages/backgrounds, can be seen in Mountain Temple stage (Windows only; technical limitation)
  • Reversaldef Controller
  • Missing ~ and ^ and ^^ operators
  • Operator precedence is correct now
  • Error screen is back in action for Dreamcast version completely
  • Web version error screen is back too, but cannot recover from error screen to Title
  • Hit priorities
  • Most of applicable mugen.cfg / dolmexica.cfg parameters (still in progress)
  • IntPersistIndex, FloatPersistIndex + Variable resetting
  • Adding root, parent, targets and := operator to storyboard triggers (storyboard triggers still in progress)
  • 68 bugfixes

Controls for Windows/Web:

  • Movement - Arrow keys
  • Weak punch - Q
  • Medium punch - W
  • Strong punch - E  (Note: Suave Dude does not have a strong punch)
  • Weak kick - A
  • Medium kick - S
  • Strong kick - D (Note: Suave Dude does not have a strong kick)
  • Start - Enter
  • Return to title screen / Exit the game from title screen - Escape

Controls for Dreamcast:

  • Movement - D Pad or Analog stick
  • Weak punch - X
  • Medium punch - Y
  • Strong punch - L (Note: Suave Dude does not have a strong punch)
  • Weak kick - A
  • Medium kick - B
  • Strong kick - R (Note: Suave Dude does not have a strong kick)
  • Start - Start
  • Return to title screen / Exit the game from title screen - A+B+X+Y+Start (Standard Dreamcast combo)

Additional notes:

Thanks for playing/testing!

Install instructions


Extract the folder and open DolmexicaInfiniteDemo13.exe.


Burn the .cdi file to a CD-R using Padus Discjuggler 6.0 (  CD-RWs will not work. Burn at slow speeds, if possible. Put the CD-R in your Dreamcast. If it shows -Dolmexica Infinite Demo 13 executable- during the Sega logo screen, you did everything correctly.


Dolmexica Infinite Demo 13 for 2 MB
Dolmexica Infinite Demo 13 for 2 MB
Dolmexica Infinite Demo 13 Make-your-own-game kit for 3 MB
Dolmexica Infinite Demo 13 Make-your-own-game kit for 14 MB


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How I can modificate the Dremacast version to inclide other characters? I know that putting the char on CHAR dir and modificate de select.def file to include it, but When I generate a new cdi with this modifications, the main screen appears but when I press start to play it, the game crashes

Yeah, that should be the way to go. Did you try it with the Windows version? Maybe the Dreamcast version ran out of memory. Other than that, unlike the original Mugen, the Dreamcast version is picky with upper/lower case filenames. So if the original character creator didn't pay attention to that in the .def file, the character might crash.

If it also crashes in the Windows version, that's some error in the interpreter. On that note, I'm sorry about the lack of error output (e.g. infos  about what went wrong, etc.), I'll add that in the next version. If you don't mind, could you tell me which character crashed so I can take a look too? 


Finally, a way to play all those hot MUGEN 1.1 characters on everyone's 2nd or 3rd favorite Sega console! I hope everyone dosn't accidentally burn though CD's trying to index characters and get character select screens to line up properly.

The browser version seems to set it's frame rate to the monitor's refresh rate (144fps KFM has some sick frametraps) and makes all of windows eat shit while loading and unloading it, but why would you play MUGEN in a browser anyway? Unfortunately the Windows version dosn't support best boy Dragon Claw so I can't really recommend it, but it's a good start.

Also, did itchio remove the jam page comment section? How will I ever secretly shitpost now?

Official pro-tier indefensible ranking as generally accepted by everyone as signed in the Sega home console treaty of '68:

Dreamcast > Mega Drive > Saturn = Master System > CD > 32X > SG1000 though it may be good, but how will we ever find out.

The CD thing reminds me that I wanted to add SD card support later down the line, so you only need to burn the disc once and then read characters and all that dynamic stuff from the SD card. Though I guess technically, you could just start the game from the SD adapter then and do away with CD-Rs altogether.

So I guess the web version ignores my plea for 60 frames per second. Proper handling of variable fps is something I'll have to tackle in the future anyway, for the five TVs left in the world who only run in 50Hz.  The other games had 50Hz support, but since Mugen relies so much on integer frame values, I've removed it from this one. Of course only until it's all properly sorted out

For me the jam pages still have comments: Does it not show the comment stuff for you? Either way, thanks for risking life and limb outside of the safety of the jam page to share your experience with the demo!