There were so many things the anime skipped out. Me, I really notice the difference in the comical stuff.

Example: before the meeting of the Genin test for the team, Naruto was thinking about how he was gonna attack Kakashi.
I use kage bunshin, grab him, and attack him from the left. But he can easily kick me away if I do that. In that case, I kick him in the jewels first.
Hahahahha, all this happening with that Kakashi voodoo doll in his room. I can't believe they skipped that part out, along with a lot of stuff.
Another one is Kakashi's chidori against Haku. That just went right through Haku. That was so awesome, but in the anime, ugh, I was quite disappointed.