I beta tested the Makai Kingdom port if anyone has any questions about it. Not much to say though, its a pretty direct port, not dissimilar to the Soul Nomad port.
I played Soul Nomad, ZHP and Makai Kingdom for about an hour each last night.
They're all ran pretty well, although there are a couple of things I'm not happy about. First and foremost is the font.
Codeglue should've opted to use a good pixel font instead. It's a little inconsistent seeing the fonts used by the UI in Makai Kingdom is a mix between bitmap and vector font.
Secondly, disabling texture filtering didn't affect the VN segments of ZHP, even though the character sprites and 3D fields are properly unfiltered. As a result, the VN segment looks extremely blurry at 2160p.
There is no anti aliasing whatsoever, so I'll have to see if we can apply SMAA or use DSR with a negligible performance loss (probably not the latter).
Looking into the game files, it seems that the assets are unarchived, and there are loose files for the fonts. It might be possible to modify the font if we can understand what the format is (.otx extension).