It's a pretty great game, i'm going to get it soon.
Well first, there's a one player story mode where you play through side scrolling levels with different obstacles.
The best part of the game is the online. You can create your own levels with different themes and obstacles
[video=youtube;3UVCwfs0iQE] <<Mirror's Edge level on LBP.
From what i heard, you can pretty much put anything in your level. Then you publish your level so others can play it and you can play other people's levels.
Random: How do you dunk in nba2k9 for the ps3?