Forge mods can be run on Neoforge by default, and that's what I'm doing for most of my mods right now. But, when I try to run this one in particular on Neoforge, I get an error about needing a version .2 of forge when I only have a version .1
This happens on 1.20.1, both version 1.0.1 and 1.0.2

Epic Fight also targets forge 47.2.x, at least for the newer versions, so you would still have the issue even if I changed it on my mod. You could modify the mods.toml of Epic Fight and see if it runs, but I'd be doubtful.