Kill 100 enemies in one life with the mage's fire wall.

Win Class 2 Race at Stadium

Rescue Friends at Fortress

Pass the Tests of Manhood

Destroy 5 Hellcat Cruisers

5 Starred on Easy Guitar (or 3 Starred on a higher difficulty) 25 Rock Band 3 songs.

Destroy Ship at Drill Platform

Destroy Equipment at Dig

Kill 25 Helghast using melee attacks

Hurt Smithers with one of his own bombs.

Fully Upgrade A Single Stat Of Any Weapon In Campaign Mode

Clear the game on the highest difficulty.

Defeat Saddler in battle, and escape from the nightmare.