At this point the term "retro" has lost all applicable meaning, kinda like "HD." Nowadays anything with chunky square graphics is considered retro no matter what the gameplay elements are. I tend to attribute the term retro not so much to games that look like older titles but rather games that PLAY like older titles. Kami Retro has glimpses of these elements, but trades more on its main character being square than it does in old school gameplay.