One thing that I love about this show is that an episode can transform into anything (and we know this especially because this is a western-style episode and the part two turns into a Star Wars theme). There was so much about this episode that I loved! The costumes, for one were awesome! Annie in particular, for example.
I have said this before, that I hate what they do with Pierce's character in season two. They make him the bad guy all the time. They have the rest of the group exclude him constantly, and after a while I just got sick of it. But he makes quite a name for himself for the better part of this episode. His motives weren't pure of course. It was all in an attempt to bring down his fellow study groupers (mostly Jeff).
Josh Holloway as the Black Rider was a nice touch. I love the cameos in Community anyway, so this was a bonus.
But, they trashed the school again, that is the best part!