films. In the expansion pack for Red Dead Redemption: Undead Nightmare, there is an achievement called "Chupathingy," when killing a Chupacabra. Impact on machinimaRed vs. Blue is widely credited with attracting public attention to machinima and web-series. The first instance of machinima dates back to the 1990s in the first-person shooter game Quake. A group that called themselves "The Rangers" created a software mod of them typing in the chat box and putting lines of dialogue on the screen. This group named these "videos" Diary of a Camper. Even though Rooster Teeth is not the first to produce machinima, Clive Thompson credited Red vs. Blue as "the first to break out of the underground". Tavares, Gil, and Roque called it machinima's "first big success", and Paul Marino noted that "the series proved so popular that it not only transcended the typical gamer, it also claimed fans outside the gaming world". In 2005, Thompson wrote that "Microsoft has been so strangely solicitous that when it was developing the sequel to Halo last year [2004], the designers actually inserted a special command—a joystick button that makes a soldier lower his weapon—designed solely to make it easier for Rooster Teeth to do dialogue".Red vs. Blue has motivated the fan base to create the machinima "Sponsors vs. Freeloaders". This series lived on the forums of roosterteeth.com. The series has inspired other machinima productions, including The Codex. Other Halo machinimas that are not necessarily related to, or influenced by, Red vs. Blue are: Arby 'n' the Chief, The Forgotten Spartans, Matchmaking, Spriggs, Rise of the Spartans, Playtime, C n' P, and Sandguardians. In machinima, Red vs. Blue has been mentioned as the most successful example of the trend toward serial distribution. According to Hugh Hancock, this format allows for gradual improvement as a result of viewer feedback, and gives viewers a reason to return for future videos. Hancock argues that this model was necessary for Red vs. Blues success: "Sunday night is Red vs. Blue night, just as (in the UK) Thursday used to be Buffy. Had RvB released their films as single downloads of an hour and a half, they'd have had nowhere near the success they currently enjoy." Karen Moltenbrey explains that, machinima films were quite lengthy and were typically not episodic. Rooster Teeth was able to combine these aspects by compiling the episodic adventures into a feature-length film and selling DVDs. DistributionRed