This here is a video of Stage 7-1. Part of The FINAL level in the game, Eternal Chaos, in which you fight all the bosses from the previous levels, before fighting the Extra Final Boss(es). As of this video, the level layout is finished and a placeholder for Foggy Fungi Forest's Stage Boss is present. And yes, It's Betty. Her Magic form though may not be the final decision though, as I have two designs. But I felt I could not have Simon (Ice King) without his fiancee too. I am a Petrigrof shipper and you can't have Simon without Betty. not even if they're both whack.
This stage is deceptively beautiful, but don't let the pretty looks fool you, this level is hardcore.
Not pictured is the lower half of the stage which may or may not contain Lich possessed Marceline.
