Cartoon Network’s Adventure Time has been one of the most inventive and creative cartoons in a long, long while, doing everything it can to flip things on their side. Which is why we’re so incredibly impressed at this next upcoming episode, for on Labor Day Monday, September 5th, Adventure Time with Finn and Jake becomes Adventure Time with Fionna and Cake! The premise of the episode is an alternate reality, where Princess BubbleGum is actually Prince Gumball, the Ice King is now the Ice Queen, and Marshall Lee as Marceline. Fionna and Cake obviously take the parts of Finn and Jake, ready to head out on their own Adventure Time!
The Ice Queen
Fionna ready for business
Adventure Time With Fionna and Cake
Marshall Lee as Marceline
Fionna and Cake
Fionna the Human
Cake the Cat
Adventure Time with Fionna and Cake replaces Adventure Time with Finn and Jake
The Ice Queen
Now that the episode is all said and done, and we got the coolest glimpse ever of this alternate universe, what’d you think? Who was your favorite bizarro character? And how many times do you want Neil Patrick Harris and Prince Gumball to return?
As far as we’re concerned, this Adventure Time with Fionna and Cake universe should be visited at least once a season – but we wouldn’t be too upset if Cartoon Network decided to give them their own series 
would love to see more from fionna
fionna is so hot :p
i love marshel-lee
marshall lee and mareline would make a cute couple
marshal lee and fionna <3 i really wanna see more of the gender swapped. But the finn and fionna should never mix
its a super film pleas replay in 2012 i cant see it in 2011(i am turkish)
I love Marshall Lee :$ ♥ :3
Fionna and Finn makes a great family!!!!!!
and fionna and Marshall lee are perfect lovers c=
Marshall Lee AS Marceline? Srsly, dude.
srsly dude,why is adventure time with fionna and cake stopped coming on CN?
omg omg marshall lee <3 hes soooo hot he and fionna are made for eachother lol BRING ON MORE FIONNA AND CAKE
I hate this we CNT Wach any of it!!!