I genearlly like tower defense games. This one however, I loved. I played straight through it. Some people found the quips the hero made annoying, I think they give what can sometimes be a lifeless feeling genre a nice boost in the humor department.

The shooting can be a bit wonky in the beginning of the game, but the dialog and story branching make this one quite a bit of fun. The hacking mini-game can be a bit difficult. However, this is one of those few games that once you get into, you do not want to stop playing.

You get to kill zombies. It doesn't get much better than that. If you don't own this yet, and you like to shoot things with your friends, well, I don't know what to tell you.