1-50 up to the end of the chunnin exam prelims was about ninja's with a small amount of demonic arts
now ... its about freaks, with every freakin type of special power showing up. Whats next? a ninja with the bloodline limit to shoot rainbows out of his ass? They dont even explain them anymore ... its just "they have THIS power"
in the early days, you could get kicked in the face, and youd stay down. Martial arts meant something. Kunai's were dangerous, and nowadays you throw a kunai, it gets deflected, and now you shoot lasers from your eyes.
this manga/anime has become utter crap