I'll take a look, thanks! Will let you know when I find out what's causing the issues.
I took a look at all the things going wrong with Street Fighter vs Tekken on Dolmexica and it's unfortunately quite a lot.
- Not relevant for the vita version, but it already fails loading the truetype fonts. For the vita version though, that will mean that those fonts will not show up since truetype fonts are not supported on there. Will be fixed for other platforms though.
- Then there's the issue that a lot of paths have \ instead of / in them, which Dolmexica does not handle gracefully, that also has to be fixed.
- There seems to be a difference in how Mugen and Dolmexica handle fight/system fonts. Dolmexica completely unloads the system fonts before loading the fight fonts, leading to the fights in Street Fighter vs Tekken missing font1 (in data/RenegadeLifebar/FightWithoutPorts.def). That will also have to be adapted to avoid a crash when loading fights.
- Characters themselves sometimes crash on Dolmexica due to various reasons. Balrog_mx has an unclosed group header that doesn't seem to be handled gracefully and causes issue. Similarly CvS_OgreTAG just crashes.
- Other characters have smaller issues, Blankaw's hitboxes don't work (probably a localcoord issue) and some characters like Kratos2 don't have any input in Dolmexica.
- There's also some characters that work, even when fighting against themselves, such as Cammy.
- There are issues in the appearance of both menus and stages. There seems to be something going wrong with the localcoord of the stages in Dolmexica. This should technically work, probably a bug there somewhere.
From what I see it's not one thing that affects all characters, but rather a range of different issues affecting different characters, unfortunately. I'll continue taking a look at and fixing the issues, I just wanted to give a first overview over the things that are going wrong as this might take a while to fix.
It is unfortunately unlikely for me to try something like that, as I always try to make sure the Dolmexica mods I make also run on the Dreamcast. And in my experience, anything from 3D games and from after the Dreamcast's lifespan does not fit in the Dreamcast's limited memory.
I am still fixing Dolmexica so it works with the Street Fighter VS Tekken mod, and the characters there seem to fit into Vita memory at first glance. Maybe someone has already made Street Fighter IV / Tekken mods for Mugen? If those don't work with Dolmexica, I would also take a look at those, but I wouldn't proactively make new ones.
lots of cross over games are already made for mugen over the years but doesn't work with dolmexica. I tried to use the assets to dolmexica but it crashes in PS Vita. I don't have a dreamcast but I can try it using flycast. I have tried your dreamcast versions it works on flycast but no one have mod a mugen game for dolmexica or dreamcast with tekken or streetfighter theme or even a cross over.