Cleave a ship in half.

Engrave your first item.

String up one henchman and drop him to surprise a second (any play mode).

Achieve 16 medals on predator challenges

Complete one predator challenge by using only Silent Takedowns

Complete a combo of 20 moves (any play mode)

Glide continuously for over 100m

Complete one combat challenge without taking damage (any character)

Complete a combo of 50 moves (any play mode, any character)

Defuse all bombs in 3 minutes or less

Find a way into the secret base

Complete all 40 of the Catwoman Riddler grid items

Collect all of Batman's gadgets and upgrades