Exhausting sounds about right. If I recall correctly; Iizuka was keen for FB to appear in Mania because he likes that zone a lot. So it doesn't surprise me Team Mania maybe went a bit overboard with the re-design, really trying hard to create something special for Iizuka. They mostly did a good job. I don't mind the longer upper route in act2, although it does drag after a while and there are too many automated sections. Yeah, the lower route is shorter (and allows access to two special stage rings which can't be accessed in the higher route), but it's design is a kind of a mess with slower platforming and hazards all over the place which can get frustrating. Also, you can obtain a ridiculous number of extra lives in FB (about 8 or 9 in each act). I really like the rain and wind affects in FB and can't get enough of the music.