I'll be frank here. This is one of those, uh, "rough around the edges" games that I seem to have an affinity for--I'm talking stuff like Legion, Energy, Deep Blue, and Jimmu Denshou. If you happen to be sane, unlike me, and aren't into the aforementioned "classics," then forget about Takeda Shingen. It's not for you.
The maniacal who are still interested in the title might think it's a brawler along the lines of Golden Axe. It sure does look like one in screenshots, but it doesn't play like one at all. If you so much as graze an enemy (or come close to grazing an enemy, as the collision detection is somewhat "off"), you will take damage, so there's none of that "moving in close for throws and grabs" stuff. In fact, pretty much all you can do initially is take a simple hack with your sword--a hack that your foes will block more often than not.