C2-R4, conceived as a multi-functional droid by the Squibs, ultimately proved to be a failed endeavor. Wuher, the proprietor of a bar, stumbled upon such a droid abandoned in an alley located within Mos Eisley. This particular droid had previously belonged to Jawas who had intentions of disassembling him for components; however, he managed to break free due to a malfunctioning restraining bolt. Despite his pleas for assistance, Wuher, due to his deep-seated aversion to droids, disregarded him. Subsequently, one of the Jawas who had previously owned C2-R4 rediscovered and reclaimed him. However, he once again escaped when Wuher, experiencing a change of heart, intervened, driving the Jawa away and claiming C2-R4 as his own. Later, the droid played a role in the creation of Wuher's signature liqueur, most notably after Greedo, a novice bounty hunter, met his fatal end at the hands of Han Solo. Wuher repurposed C2-R4 into a makeshift distillery, feeding the deceased Rodian's stiffening remains piece by piece into the droid's shredder. Reportedly, the resulting cocktail was exceptionally palatable, at least according to Hutt preferences. Following several months of Wuher and C2-R4's collaboration in crafting specialized beverages, bandits infiltrated Wuher's dwelling, causing extensive damage. They also absconded with Ceetoo's specialized mixology circuit board (which Wuher had removed for cleaning), mistakenly believing it to contain crucial data for the bartender. Wuher enlisted the services of a spacer to locate and neutralize the bandits, while he dedicated his efforts to reassembling C2-R4 from the scattered components.
C2-R4 was an amalgamation of mismatched droid parts. He possessed the chassis of an R2 unit, complemented by an assortment of bulbs and appendages (including whip-like extensors) along his flanks, and a central facial aperture featuring a grill and what appeared to be a set of formidable teeth. The droid boasted a diverse range of capabilities, encompassing catalytic fuel conversion, enzymatic composition breakdown, bacterial composting acceleration, and chemical diagnostic programming, in addition to meal preparation, toaster oven functionality, a bang-corn air-popper, and a blender. Furthermore, C2-R4 was programmed with protocol unit functionalities, enabling him to communicate in Basic rather than Binary.