Killer Croc Killer Croc ( real name Waylon Jones ) is an enemy of Batman from the DC Universe . Description . Batman . Killer Croc has an exclusive Green head , which shows scaly green skin , red eyes , and sharp teeth . His torso is also exclusive , it is a shirtless male torso with scales and green skin . His arms are also green , but his hands are Black , most likely because they would be too expensive to produce in green at the time . Croc ' s legs are Dark Blue to represent the blue jeans he often wears . Super Heroes . Killer Croc is now represented by a big figure to make him larger . He is mostly olive green with scale - like bumps covering his back . Some basic detailing is printed on his chest and forehead , and he has an evil grin . He is also wearing blue torn pants , but in a lighter shade of blue . The Lego Batman Movie . Killer Croc , still a big - fig , has a more monstrous appearance featuring a hunchback portrayal . His scale - like bumps now extend to where his head would be and he even features a tail the head of a classic LEGO crocodile . A four pack is molded onto his stomach and he has green scales printed on his shoulders . He reintroduces arms , hands and fingers used by the Rancor from Star Wars , but in olive green with scales printed on . His shackles are portrayed as silver , metal armbands with chains attached to them . He has blue pants with a brown rope used as a belt . His pants are torn at the bottom and he has three - toed dinosaur - like feet . His fingernails and toenails are tan . In " LEGO Batman " . In " " , Killer Croc was identical to his appearance in . In preliminarily screenshots of " " , Killer Croc wears lighter blue pants and has no gloves on , though this was changed in the final cut , although in the Attract Video he appears like in the early photos . In " LEGO Batman 2 " . Killer Croc is one of the few " Batman " characters who has not been rereleased in the Super Heroes line ( at the time of the game ' s release ) whose video game design has changed for " " . Croc ' s head and torso are the same , but he now has a belt on his hips and his pants are ripped , leaving much of his legs exposed . And his hands are green , rather than black . Background . Waylon Jones had been shunned by society due to his disfiguring skin disorder . Having gotten a job as an alligator wrestler in a side - show , he decided to make more money in crime and became known as Killer Croc . Though he has low intelligence , Croc has super strength , accelerated healing , is a strong swimmer , hardened skin , and powerful jaws thanks to his reptilian genetics . In " LEGO Batman : The Videogame " . In " " , Killer Croc was a boss in the level " Under the City " . He was also a playable character in " A Daring Rescue " . Croc can dive , is immune to toxic waste , and he has super strength . Killer Croc was an important part of The Penguin ' s team , which also consisted of Bane , Catwoman , and Man - Bat . The team planned to unleash an army of Penguin Minion s on Gotham City . After Catwoman successfully stole the Gotham Diamond , she refused to hand it over to Penguin . When the police showed up Penguin and Catwoman both escaped , but they were separated . While searching for Catwoman , Penguin was spotted by a Police Boat , he summoned Killer Croc to help escape the police . After doing so , they were pursued by Batman and Robin , which resulted in the destruction of Penguin ' s Submarine . In an attempt to evade the Dynamic Duo , Killer Croc and Penguin escaped into the sewer where they received a message from Catwoman who was looking to be freed from the prison cells beneath the Police Department . Killer Croc and Penguin laughed until she informed them that she still had the diamond , so they agreed . Killer Croc and Penguin made their way to the Police Department by way of the sewer . Once Catwoman was freed , she once again refused to hand over the diamond , until Killer Croc growled at her . Shortly after , Batman and Robin arrived , which caused Catwoman and Penguin to flee . Croc stayed behind to try and fend them off and allow Penguin and Catwoman to escape . Croc was defeated and sent back to Arkham Asylum . In LEGO Batman 2 . Killer Croc appears in Arkham Asylum ' s underground prison after the failed breakout , which he was not a part of . He blocks Robin ' s way when he is in the tank , and the player has to give him food in order to distract him and let Robin continue his way . In the console version , he is found under Gotham waterworks and is available to buy for 125 , 000 studs when subdued , but in the portable version he is only unlocked for purchase when the first minikit of " Gotham Metro " is found . In the portable version , his minikit is found in the level " Arkham Asylum " . He costs 100 , 000 studs like most of the Batman villains . In LEGO Batman 3 . Killer Croc reappears in as a playable character . Unlike his previous appearances , Killer Croc is redesigned as a bigfig . He is most likely based off of his appearance in the " Batman : Arkham " series of video games .