Answers to questions that often pop up. Will extend this as stuff comes in, right now it seems most questions are centered around how to actually get it running on consoles / in browsers. Please let me know if anything is still unclear or doesn't work. Thanks!
Running on Windows:
Extract the download and open Dolmexica Infinite for Windows.exe.
Modding the game:
Extract the Dolmexica Infinite download. Change the files in the assets folder as you would with regular M.U.G.E.N to add characters and stages (documentation is here: https://www.elecbyte.com/mugendocs-11b1/mugen.html). Differences between Dolmexica and M.U.G.E.N are documented here: https://captaindreamcast.github.io/DolmexicaInfinite/differences.html
Creating a .CDI disc image for the Dreamcast:
Extract the Dolmexica Infinite download. Modify the assets folder to include the characters/stages you want. Open "Dolmexica Infinite Make-your-own-game kit for Dreamcast.exe" and follow the instructions to generate the .cdi file. A more in-depth explanation is here: https://captaindreamcast.github.io/DolmexicaInfinite/makeyourowngamedreamcast.ht...
Burn the .cdi file to a CD-R using Padus Discjuggler 6.0 (https://www.afterdawn.com/software/cd_dvd/burning/padus_disc_juggler.cfm). CD-RWs will not work. Burn at slow speeds, if possible. Put the CD-R in your Dreamcast. If it shows -Dolmexica Infinite 1.5 executable- during the Sega logo screen, you did everything correctly.
Creating a .vpk package for installation on a jailbroken Vita:
Extract the Dolmexica Infinite download. Modify the assets folder to include the characters/stages you want. Open "Dolmexica Infinite Make-your-own-game kit for Vita.exe" and follow the instructions to generate the .vpk file. A more in-depth explanation is here: https://captaindreamcast.github.io/DolmexicaInfinite/makeyourowngamevita.html
Transfer the .vpk to a Vita and install it from VitaShell. For info on how to jailbreak your Vita, refer to the information in this guide. In addition to that, libshacccg.suprx (a Vita shader compiler needed by vitaGL) needs to be extracted on your Vita. For information on how to extract libshacccg.suprx, please follow the information provided in this guide. The Vita emulator Vita3K is not supported currently.
Creating a .zip archive for upload on sites hosting HTML5 games:
Extract the Dolmexica Infinite download. Modify the assets folder to include the characters/stages you want. Open "Dolmexica Infinite Make-your-own-game kit for Web.exe" and follow the instructions to generate the .zip file. A more in-depth explanation is here: https://captaindreamcast.github.io/DolmexicaInfinite/makeyourowngameweb.html
The batch file will output a zipped folder you can directly upload to itch.io, newgrounds, or similar sites.