You flung a turd of your own creation at an enemy.

Destroy all of the militia watchtowers.

Save the sacrificial victim and lock up the executioner in GCPD.

Win the rumble down under.

Track down and apprehend the serial killer.

Cure the doctor.

Defend the assault on your ally's fortress.

Obtain a key by completing the last Riddler trial.

Secure the secret base.

Destroy all of the militia APC's.

Smash 10 militia transport vehicles off the road without using the immobilizer.

Obtain a key by completing the seventh Riddler trial.

Stop the bank heist on Miagani Island and lock up the master mind in GCPD.