There have probably been a million jokes about this film's title, and unfortunately, they are largely justified. "Evangelion 2.0" (or "Evangelion 2.22") is, like the first film in the supposed tetralogy, largely a retelling of the original series, only differing significantly in its final act. Unlike its predecessor, however, this film doesn't seem to grasp what made "Evangelion" such a beloved property in the first place.
The opening does not bode well. The action is hard to follow because of its audio-visual overload, even besides the overused CGI, lens flairs and horrible guitar music, and the pacing is even more breathless than in the first film. Within 15 minutes, two angels have been defeated and three major characters introduced. This is a logical complication of condensing a series into films, but one wonders whether that is desirable in the first place.
The rest of the film fares better in terms of pacing. Besides the climax, the story differs in some slight ways from the series. There is a picnic scene in a marine laboratory that is largely redundant but a nice interlude, some redesigned angels, and a new Eva pilot in the person of Mari Makinami, who wears fetishist glasses but is for the rest without personality.
Far more significant are the changes to Asuka. An attempt has been made to somewhat stabilise the series' emotional turmoil, and her character is notably affected by it. Some critics have praised the increased consistency, but "Neon Genesis Evangelion" was never a success because of its steady character relationships. The series' greatness is derived from its emotional intensity, because it pulled its characters more thoroughly through the wringer than anything else and was not afraid to hurt its audience at the same time, but here, more than a few rough edges have been smoothed over.
Instead of bratty, her initial attitude is now downright antisocial. In the series this is revealed only much later as a hidden shadow side, together with the trauma it stems from. Unbelievably, this trauma is completely absent in all three released films, so instead of one of the story's best characters, Asuka is now merely a big-mouthed lust object; not so much streamlined as a severely downgraded.
The bonding between her and Shinji has been watered down too, so strongly it is virtually non-existent but for their sexual tension. Considering that their relation in the third film has diverged significantly from the series, this choice could have been defended, had Asuka not been the very reason for Shinji to trigger this film's climax (she takes on Toji's in a certain incident.) And so, the lack of development she undergoes undermines the plot itself.
This detrimental smoothing is indicative of all writing. In an attempt to be slightly less impenetrable, more exposition is thrown in, which will go over the head of those who don't know the story, and slap those who do in the face with its obviousness. Shinji mentioning that his Eva's smell reminds him of his mother, or Rei merging with the form of said mother in Gendo's imagination are good examples of this.
It is a relief that "Evangelion: 2.0" finally begins to diverge from the series, but I cannot say whether I appreciate the film itself. By simplifying some of the deepest writing in anime, Hideaki Anno has created a serviceable action anime, but seems oblivious to what made his creation great in the first place. It is a film not recommendable for its own accomplishments, but merely as the set-up of something that is hopefully more interesting.
A final note: Don't make the climax of your story a post-credits scene. I had to watch this film twice to find out that it even had and ending.