At nighttime in Gotham, You decided to go for a short walk around the city. You knew full well that Gotham was famous for its unimaginable number of criminals, but you didn't think about it at the time. You were passing by an alleyway and noticed something. Three criminals carrying some jewels in an alleyway. One criminal sees someone's shadow from above, thinking it is Batman. It jumps down, crushing their car's hood. You flinch and realize it was a large reptile looking man?! After some quarrels with the criminals, he introduced himself to them

"Names, Croc. Killer Croc, but you can call me boss."