Complete the game on any difficulty. (Solo only)

Venture into Killer Croc's lair and come out alive

Find 20 treasures

Solve 85% of riddler challenges

Defeat 50 enemies with hand-to-hand combat

Find 30 treasures

Finish the game in Easy Mode

Defeat 30 enemies with the Wes - 44

Defeat 20 enemies with a single punch, after softening them up with gunfire

Defeat three enemies with one explosion

Save Dr. Young from being killed by Victor Zsasz

Defeat Bane