Uncle Scrooged is a quest that Donald Duck will give Mickey in Epic Mickey: Power of Illusion. Donald wants to fix his boat, but he needs money for it. After Mickey mentions that his Uncle Scrooge is in the Fortress too, Donald asks Mickey to take him to him.
Whilst Scrooge will be happy to see his nephew, he also hasn't forgotten about the money he's owed. However, he offers Donald the opportunity to work it off by working at his store later. Donald declines the offer, and decides to find someone else to help him.
He still rewards Mickey with a Health Upgrade and a Room Star.