An OK RPG, doesn't really tell the Eragon story, really missing stuff.
First of all, this game can be really HARD. Unless you focus your talents towards the magic bar, prepare to be frustrated.
The graphics are poor, the story is flawed and it can be a hard task to run away from enemies who are stronger then you.
In order to be able to beat it, you must dedicate almost 4hours to level yourself up, which is boring.
There are very few worlds or, towns, to enter, and the rest is exhibited as two giant maps.
The music is really good. A soundtrack that barely ever loops is always playing a sweet serenade of music.
All in all i was disappointed, Eragon is a great book, the movie was OK, but the game was horrible. If you are a fan, try it for a different console, if you really want this one, wait until the price goes down.