If your a Fan of the Inheritance series, and like mindless, and sometimes classy action adventures, this game is for you
From the offset the games graphics are splendid on the 360, they could have been sharper, but the character movement is well animated as is the combat, which, unless you dont mind switching from ranged to magic to physical combat to keep things spicy, is well done aswell. The games grapples can be fun to execute - take Broms over the shoulder spine breaker, or watching Eragon flip over an enemy and beat them senseless with his sword hilt. So on the whole, the combat is good, and flashy but no where near as innovative of LOTR: ROTK, but its fun. The combat comes into its own when you play with someone, a good pair of well matched gamers, that can keep themselves together to avoid the games slightly annoying camera issues, you can gleefully wade through enemies with style and grace - if you dont venture too far apart and prevent each other attacking.
The level design is nicely done, well reflecting the film and the book. But you sometimes get the feeling that you have been in one location more than once before, this is most prevalent in the Saphira dragon riding sequences, which are fun, and pulse pumping, but there is not enough area to explore - just stay alive until you have wiped out an army, but that said the graphics are top notch and a sensitive player can make great use of Saphiras flight. Again when playing in co-op someone controls Saphira, while someone controls Eragon making the flight sequences reall, really fun, as teamwork is essential at that point.
The games sound is nothing special, but the voiceovers are good, except for the fact Jeremy Irons is not present as the voice of Brom, but Ed Speleers does a good job of his own characters voice. The combat sounds are hefty and you can hear each attack connect, which is always nice in an action game.
The games music is epic and well orchestrated, but can become reptitive.
If your a big fan of Eragon, you will get plenty of fun from this game, especially if you have someone to enjoy the mindless fun with.
Its not the best put together game, but it trumps Superman, and deserve some time even if just renting it, this game will supply some fun, for some people.