To the TOPIC creator:
There is no difficulty setting.
To everyone else
WTF is with people posting all sorts of pointless and non-related garbage. The TC asked if there was a difficulty setting NOT WAYS HE CAN MAKE THE GAME CHALLENGING.
Answer the damn question with a yes or no answer and quit adding in all this crap that has nothing to do with his question and move on. It's ridiculous how people cannot read topics then try to play victume when someone like me says something.