Kata: UglyTrivia legacy code refactoring kata in Java

I've just solved the UglyTrivia legacy code refactoring kata in Java which was the kata we did in the last Barcelona Software Craftsmanship event.

This is the initial version of the Game class:


And this is the code after my refactoring:

Update:
And this is the code after I revisited it again (Feb. 27th 2016):


Check my solution in GitHub with commits after each refactoring step.