This that I am about to present, is a game developed by Indie author ISAmu - 2007 - Japan - Windows PC platform.
The game mechanics, traces that of an Irem's Kung-Fu Master (1984) and that of a Konami's Yie Ar Kung-Fu (1984), with some rpg elements and several selectable characters and styles (each style, for each character) are to be added, so there is no shortage of classic "combos" and "super combos" on the side.
The game is completely in native Japanese language, so you will need to have the Oriental language pack installed on your PC.
Here is the gameplay link:
It can definitely be said, that this is a REAL, OBSCURE, UNDERRATED and HIDDEN GEM game simultaneously.
So, happy hunting and have fun. (Because you will have fun, I assure you)