Oh, and, before I begin, wiki users! Get those screenshots! 😀
1: That remix.
Paying tribute to classic PF. We see S.I.M.P. (Squirrels In My Pants), Ain’t Got Rhythm, Spa Day, and “I’m Lindana and I Wanna Have Fun!”. Dang, that was such an awesome moment.
2: It’s the second episode to not take place in the summer.
Change is cool. Any non-summer episode is really cool, because we get to see the kids in their natural environment. If that’s the proper term, of course.
3: That money gag at the end.
Oh, my god. Doofenshmirtz could have been a lucky man, but instead, all people want are canvas bags with dollar signs on them. It’s a shame really.
4: Monogram is in drag.
Oh.
5: The Phinabella moments are starting to get better and better.
Phineas: Isabella? What’s the matter?
Isabella: I… Ran out of shoes.
Phineas: (takes off his own shoes) Ah, it’s ok, it’s more fun to dance bare-foot anyways!
One of the cutest moments here. Equalizing moments between the two are the best. Do we have a trope for that?
6: Montnessa moment really made up for all the underserved ones.
All the previous Montnessa moments we’ve seen have really been underhand motions. This episode clearly added so much more depth to the relationship between the two.
7: That Scarlet Pimpernel gag.
I did not realize that the entire male population of Danville dresses up as the Scarlet Pimpernel. Oh, and nice save, Stacey.
8: …and, similarly, the Vampire Queen/Princess gag.
Huh.
9: The art direction on this episode really was amazing.
See the art here? If you compare it to previous episodes, there are no episodes as good as this one in the terms of visual appeal. The detailing on the castle interior…it’s just beautiful, and it shows how much the show has progressed over the course of six years.
10: And finally…
This happens.
A Blog 
Yeah, they really made their 200th something pretty cool.