There is nothing overtly wrong with Open Season, just nothing particularly good either.
Gameplay: Open Season puts you in the forest as Boog, a bear who has lived his entire life in the home of Ranger Beth, and Elliott, his trusty sidekick who also happens to be a one-antlered deer. Your mission is to save the forest from a ton of hunters led by the nasty Shaw, who has a bone to pick with Boog.
The game is broken into a series of scenes that coincide with the movie. You'll spend your time roaming about, scaring the hunters away and assisting various woodland creatures in need. There are usually a few (rarely more than five) badges to pick up in each stage which, while falling into the "fetch quest" trap, are obvious enough that finding them is really no problem. There are also four stages where you find yourself propelled along, controlling only whether or not you jump and which direction you lean. These (especially "Snow Blitz") have the potential to get downright frustrating.
That said, the controls aren't difficult. They're responsive for the most part and easy to pick up. Using the creatures you've made friends with as weapons is amusing and scaring the hunters is fun. Unfortunately, the game is so simple that the fun wears off pretty quickly if you're over the age of 8.
Visuals-While they don't push the capabilities of the Xbox 360 in any way, Open Season's graphics are quite passable. They stay true to the art style of the movie and there is little to know slowdown or draw in.
Sound-Here's where the game falls off a bit. There are exactly two songs in the entire game and only minimal background music. The voice acting for the main characters is a strange mix of cheesy and mail-it-in flatness. The peripheral characters (specifically the woodland creatures), however, have a well done mix of stereotypical ethnic accents.
Value-This can be summed up in one word...none. A competent gamer should be able to play this game, start to finish, in around six hours. Once you finish it, that's it. There is a minigame compilation tacked on in an attempt to add some replay value, but it doesn't work.
If you are looking for a gamerscore boost or need to entertain a bored kid, you could do worse than Open Season. Just don't expect to get your money's worth out of it. It's an extremely short, shallow adventure best left as a rental.