This is one of the best shooters on the xbox. It has a very high replay value. I got this game 2 and a half years back, and I still play it. The story mode is good, but it isn't a goldeneye. The arcade league, challange, mapmaker and multiplayer modes are what keeps you playing it. There are 126 characters (I unlocked them all, there's no cheats for this game though). all the characters come from different time periods. You have sci-fi, military, western themes, etc.
The multiplayer has a lot of modes (deathmatch, capture the bag, zones, etc). There are plenty of maps, circus is my favorite. You can have up to ten ai bots, so you can play by yourself. They acually give you a challange. You can also make your own maps, it's really easy too. The graphics are cartoonish, but the textures are smooth.
TRUST ME, getting all the characters isn't even close to easy. I got really frustrated with this game. I praticed the challanges a lot though. Just so you know I'm only 12, and someone else please write a review if you unlocked all the characters.
This is Perfect Dark or Goldeneye, just on the three newest consoles. This is my favorite game (check out for Timeslitters: Future Perfect). And that my fellow gamers, is the name of the game.