Most shocking moments in the manga and your reactions.

[AaaaNinja]

Kakashi shoving his arm through Rin. Second most-shocking moment was Sasuke asking Naruto for some direction.

 

[Sot6p]

Kakashi killing Rin, the revival of the Hokages and Nagato resurrecting everyone.

Itachi being good and Tobi being Obito not so much.
There were too many hints about Itachi being good. The story about WHAT exactly happened was surprising...
And there were too many theories about Tobi being Obito.