Kill The Collector of Worlds

Complete the final Hack Support Squad Mission

Achieve 39 Stars in Riddler AR Challenges

Complete the final Penguin Support Squad Mission

Kill The World's Greatest Detective

Achieve 26 Stars in Riddler AR Challenges

Kill The Green Lantern

Fully complete the Combat Flair checklist 5 times (Single Player Sessions Only)

Get Penguin to overhaul a piece of gear

Kill The Fastest Man Alive

Destroy the Behemoth

Recruit your second Support Squad member