Bleeding Scarlett is a location-based challenge in Captain Scarlett and Her Pirate's Booty. To perform this challenge in Wurmwater, Roscoe and Captain Scarlett must be killed in under a minute. It is worth 4 Badass Rank.
Unlike wild rakk hives, Roscoe wears blinkers that help to protect his eyes, thus reducing the likelihood of critical hits. A barrage of explosive or incendiary damage directed at the head can still slip in past the blinkers and help to hasten Roscoe's demise. As a large target, Roscoe is also vulnerable to weapons that trade accuracy for power.
Adventurers are well advised to be at least 5 levels above the Roscoe in order to defeat him in under a minute.