That changes everything xd. I'm going to get it now, it probably take me a couple of weeks to get all the achievements.Well, Story mode is kinda hard to say. It's just different Stages and you can pick whatever stage you want whenever you want. And if you want all the Achievements, you're play time will probably be around 15 - 20 hours.
To bad i'm broke right now lol. I spent all my money on the xbox live membership and some other games.
What system do you have this game on?