Hit an airborne player with three consecutive Lightning Balls

Swing from one place to another and damage an opponent in between

Execute every motion sensor-based move

Completed "Trouble on the Homefront"

Completed "The American Dream"

Completed "Picking up the Trail"

Reached Level 14 with Neutral Karma

Reached Level 14 with Bad Karma

Won 50 Speech Challenges

Completed "You Gotta Shoot 'Em in the Head"

Completed "Stealing Independence"

Reached Level 8 with Good Karma

You killed a Rockstar in multiplayer.