Arkham Nightmare

Wave 1 - Hawkgirl vs. Asylum Patient and Asylum Inmates (some with guns)

Wave 2 - Wonder Woman vs. Scarecrow Goons and spiders 
Wave 3 - Black Canary vs. Asylum Patient and Mad Hatter goons 

Wave 4 - Martian Manhunter vs. guys in fireproof suits (some with guns)

Wave 5 - Shazam vs. Asylum Inmates (some with guns)

Wave 6 - Superman vs. Scarecrow goons 

Wave 7 - Batman vs. Joker goons (some with guns)

Wave 8 - Green Lantern vs. spiders, followed by Scarecrow Goons and Needle traps
Unlocked Characters: Sinestro