The whole thing is still as much of a big joke as the first episode and there was nothing particularly new there in the first place. It wasn't as surreal as the first episode, but then again, that was a head-trauma induced dream. It's a standard fantasy-adventure plotline that KNOWS it's a standard fantasy adventure plotline.
The Fourth Wall is utterly broken, the characters refer to each other by class in-character and hell, nobody's been to the top of the Tower pretty much because getting rid of Druaga again would cut off the Climbers' meal tickets. This is good stuff.