Open world to have fun in, but make sure you know what you're doing.
Story is very simple: Pacific City is infested with a few powerful mob gangs and it's up to you to destroy them all. You start by killing henchmen and lieutenants, but eventually you'll go after the kingpin. Then… repeat. There are pretty much no limitations, because if you know where the kingpin is hiding then by all means go straight after him instead of killing some little shots first. If you don't know what you're doing, then the game forces you to wonder around town for quite some time before revealing the next target. This can get irritating, if you were looking for a story-driven sci-fi adventure.
Graphics have a cartoonish look in them and it fits the overall feel of this game quite well. Colors are bright and it's nice that the game doesn't have a dark feel in it (except during the night). Environments are not that detailed and the draw distance is poor, but at least the frame rate stays always solid and there are next to none loading times. Sound design is also "OK", but nothing really memorable. Voice acting is handled with professionalism, but for some reason you'll get to hear those same tutorials over and over again. It's not a huge deal, but you'll definitely notice it.
Controlling your agent is fast and easy after a small learning curve. The catch here is that your attributes will get better in time the more you use them. Only difference is the Agility and in order to gain more jumping altitude you need to collect special green orbs scattered throughout the city. This is really a pain, because Crackdown isn't really that much fun to play until you've developed your agent enough to really feel like you're this big Superman kind of guy.
Crackdown doesn't have a real multiplayer, but you can play the whole game with a friend either through Xbox Live or System Link, but no splitscreen is available. In my opinion this game is at its best in co-op, especially if your friend has already played the game and he knows what his doing.
In the end it must be said that Crackdown is an OK game, but by no means a great game. It just lacks that "thing" that draws you into the game and won't let go until the ending credits roll.