Acquire all the Abilities in one tree.

Make an opponent suffer from bleeding, poisoning and burning simultaneously. Do this 10 times.

Take optional photo #10 in Episode 2: Out of Time

Play once as all the different heroes in the original game (Multiplayer)

Defeat another hero while playing as any hero on Heroes vs Villains

Attack, counter, cast a Sign and throw a bomb (in any order) in under 4 seconds.

Complete the trials and prove you are a worthy successor.

Lockup Killer Croc in GCPD.

Defeat the prisoners.

Discover the Lazarus pit.

Wayne vs Crane.

Obtain a key by completing the last Riddler trial.

Play in the ocean near the sunken ship