Complex sentence: He was badly disfigured after his encounter with Killer Croc in "Arkham Asylum" with his mask falling apart and his face resembling a skull, missing most of his nose and lips, exposing more of his teeth.
Split into simpler sentences: He was badly disfigured after his encounter with Killer Croc in "Arkham Asylum" with his mask falling apart and his face resembling a skull. He is also missing most of his nose and lips, exposing more of his teeth.