Uncover the secret in the old house.

Increase your item slots.

Finish off an enemy with the knife.

Block an enemy attack by guarding.

Destroy a Mr. Everywhere statuette.

Use a lock pick to open something.

Dismember 20 Limbs

Find all 3 Boat Captain Keys

Obtain all 108 medals on the original Arkham Origins campaigns (as Bruce Wayne)

Obtain all the Trophies.

Find the graves of each of your fallen companions.

Defeat the Hive Mind.

Kill 30 enemies using melee strikes or a melee Weapon Part.