Came across this image after two years and remembered I'd imagined a Pop'n Music guest DLC team for The King of Fighters XV.
From right to left, I picked out Mikey Walsh from The Goonies (beloved Konami character), Mimi (obligatory main character + cuter than Nyami), and Knit @tinyvalor (classic style).
As for their fighting styles, I gave it no thought whatsoever.