Was one of the defining battle manga along with Dragon Ball and I sometimes wish this one had turned out to be the most popular because it has a lot going for it. Great apocalyptic setting with the gore and violence, characters actually die and don't have that Dragon Ball problem of coming back to life and had amazing art for a weekly series.

Takes a few chapters to find itself, Ken is overpowered and obliterates everything until he encounters his first major antagonist which takes 30+ chapters. The second half of the manga was weaker and only existed because of pressure on the mangaka to make more money.

Overall though a very competent shounen that does most things right.