Campaign: 50 kills with assault rifles

Campaign: finish Operation Aurora

Complete story mode on Easy difficulty

Defeat the giant Titan Ivy plant

Ride Titan henchman and knock down 10 thugs (any play mode)

Venture into Killer Croc's lair and come out alive

Defeat two Titan Henchmen at once

String up one henchman and drop him to surprise a second (any play mode).

Solve 25% of riddler challenges

Destroy 100 enemy VSs.

Complete 'S.S.D.D' and 'Team Player' on Veteran Difficulty.

Complete all the chapters in Episode 2.