Board Thread:Theories and Speculation/@comment-33202319-20150622205123/@comment-3568954-20150630220755

Riptide240 the only reason only 1 person died from Rasengan is plot devise. kishimoto didn't want Naruto to be like sasuke and have him kill everyone he defeats so he had him just win and not kill them aside from the guy that itachi was possessing

it also killed 2 of kakuzu's heart

you say chidori is better for killing but thats not true chidori is simply an assassination technique ie its better for assassination as it makes less violent sound and its used in a manner in which its generally a sneak attack but if naruto wanted to kill someone using a rasengan he would be able to

and on top of that chidori is only useful for those who have the sharingan or have a technique that can negate tunnel vision like say senjutsu so you have a technique that can definitely be used to kill if the person wanted to and can be used by anyone who has the time to master the technique and another technique that is dangerous to use if you do not have a special eye or the senjutsu to counteract its tunnel vision