Got it the day it came out last week and it is a lot of fun. There are 4 modes, Slayers, Survivors, Team Slayers, and Team Survivors. Sad to say I have not tried out Slayers yet bet here is what the others are about. In Survivors, its every man for himself. You face 3 more people and you have to keep on killing each other to earn points. Dieing loses points, and you get attacked by the zombies as well ( though killing them gives you no points ) In Team Slayers, its 2 teams ( Alpha and Bravo ), you compete to kill as many zombies as you can and you can still kill each other. Slayers is the same just no teams, and Team Survivors is the same as Survivors but with teams. You don't get to use your own weapons which is fair, you use characters that have their own selected weapons. For example, if you would like to be Chris, he has a pistol, first aid spray, ammo, and a hand gernade. You unluck characters by buying them with the points you get in Campaign/Versus. There are3 alternate Chris', 3 Sheva's, 2 Jill's, and 2 Weskers. All cost about 6,000 pts - 50,000. It is a ton of fun and an excellent deal for only 400 Microsoft pts. There are also some new achievements that come with it.