Adopted a new Little Sister for the first time.

Defended yourself against Lamb's assault in the train station.

Found your way back into the ruins of Rapture.

Defeat 50 enemies with hand-to-hand combat

Defeat 20 enemies with hand-to-hand combat

Find one treasure

Complete the Stop the Rock, Rock Power Challenge

Complete the Rock-It Fuel Rock Power Challenge

Complete story mode on Easy difficulty

Solve 40% of riddler challenges

Ride Titan henchman and knock down 10 thugs (any play mode)

Conquer the effects of the Scarecrow's fear gas

Solve 25% of riddler challenges