User blog comment:GramdOne/Lifebar problems/@comment-3495717-20140329184652/@comment-3495717-20140330000901

I'm going to go on a limb and say that are designed for HD resolution (essentially the one above MUGEN's default resolution). While they work in 1280x720, they're being treated as hi-res, rather than HD res.

Think of it this way: in regular MUGEN resolution (640x480), hi-res characters have the smallest pixel size, but in HD MUGEN, hi-res characters no longer have the smallest pixel size, giving them the appearance of a low-res character. Characters with a scale of 2.5 are now the "hi-res" characters.

I either suggest obtaining a HD screenpack (the Persona 4 Arena one is an option) or adding scale values to the lifebar elements (like "p1.bg0.scale = .5,.5", for example).