Batman vs Predator
A Predator is loose in Gotham, he's been picking off random people from the street. Batman confronts it. For the sake of the battle, Batman can see through the Predators invisibility via the sonar cowel. Fight takes place throughout Gotham.
Round 1: Predator has all his weapons.
Round 2: Predator has no weapons.
Btw Batman has no qualms about killing a Predator so he's also out for blood