Whenever you directly import the transparent versions into RPG maker, the black details and outlines of all the sprites are mistaken as transparent and this ruins all the sprites. Just thought I would let you know.
They have no black outlines to begin with. But thanks for reminding me, I was planning on adding outlined versions post release but I kind of just forgot xD
The current ones are kinda meant to be used on a black background (in battle) like the old nes games.