The Crab with the Golden Claws
The game uses many references to French and Belgian pop culture. Karaboudjan is the name of "The Adventures of Tintin" character Captain Haddock's cargo ship in the comic "The Crab with the Golden Claws". Just like in "The Crab with the Golden Claws", crab cans are used to hide objects (in the comic they contain opium, whereas in the game they contain hand grenades).