You knew this was coming. What better way to finish off an epic contest than with an epic final boss...well, provided you're not completely overpowered that is.
The final target of the Borderlands 2 $100,000 Loot Hunt is none other than The Warrior, the final boss in the core game. Taking down the giant beast will net you a Flakker, and you can use that to kill anything you want to help towards the final community goal of "Tens of Millions".