Thanks for telling me about the issue! First I tried porting it to the newest version of my engine, which soon ran into impossibilities, as every single thing seems to have changed, including the programming language.
Then I tried at least recompiling the web version, which worked after a lot of fiddling. The problem with Dream Fight 16 is that, unlike the other fighters, it is not a Dolmexica game, meaning that it uses completely custom code and I can't take the assets and just use them in the newer Dolmexica. Either way, I hope the new version I just uploaded works for you!
I also tried improving the loading speed a little after you mentioned the other games were loading slowly, I hope it improved a bit!