You can chase after Kakashi:
You have encountered ANBU and Kakashi with Mangyekou Sharingan and many other weapons
Victory: Many ANBU members lay dead around you. You start to walk away, but thanks to your experienced eye, you spot
Kakashi fleeing into the woods!
Give chase-> You hunt Kakashi down and prepare to fight!
You have encountered Injured Kakashi with Kunai!
Victory: You know some people who would give quite a bit for the body that now lays at your feet.
You recieve [number] gold for Kakashi's body at a local bounty outpost.
-> Kakashi outruns you and escapes. Oh well.
Let him go-> You decide that you are too cut up to fight someone like Kakashi.
This will only be available to Jounin+ for you need an "experienced" eye to spot Kakashi.