Complete one predator challenge by using only Silent Takedowns and without being detected

Achieve 24 medals on predator challenges

Achieve 24 medals on combat challenges

Achieve 8 medals on predator challenges

Perform a perfect combo including all of Batman's combat moves (any play mode)

Solve every riddle on the island

Solve 70% of Riddler challenges

Solve 40% of Riddler challenges

Collected all trophies.

Performed Phantom Rush 50 times, outside of the training simulator.

Defeated the Titan and completed the main story on Ouranos Island.

Viewed all Side Stories.

Upgrade an ARM.