Crackdown is a very underrated game IMO,although it is very short it gives you alot to do.

User Rating: 8.4 | Riot Act X360
In the game crackdown you play as a cop and you go around killing gangs and the bosses (their are 21 of them). Their are 3 gangs each on every island.The map is pretty big and their are a few ways to get around,running,driving,jumping from building to building and thats about it.Their are skills that you level up in like firearms,agility,driving etc. And the higher your skills the more you can do.Also jumping from building to building is pretty cool.And throwing people off of the building (Lol) In conclusion i think crackdown is very addicting...like crack...i gues thats why they call it crackdown but i think it is totaly worth every penny.