The only thing that irked me was how often Naoya yelled "Niisan, help me!" constantly. I even counted on one episode, and the number of times he yelled it amounted to probably 8 or so. It's ridiculous how much he relies on his older brother and how he can't fend for himself whatsoever.
There is no character development. None. Naoya is still a whiny baby by the end of the series and Naoto is still having to take care of him.
The powers are pretty dang cool. If you're wanting to watch an anime for a more sci-fi aspect, this makes for a great sci-fi anime. Just be aware of the fact that the characters are rather bland and the enemies are not very memorable. But the soundtrack is definitely great, as well as the action and difficult situations the characters find themselves in.
This is NOT a terrible anime. Aside from Naoya's annoying yelling, this anime is pretty good! Give it a shot if you'd like. This anime is obscure for a reason... not many people like it!
