After playing OTO2 I was so disappointed at its difficulty.
OTO1/EBA has good difficulty because it can be hard to pick up for first timers, but OTO2 is a sequal and it is insanely easy, Hidden perfect S on half of Cheer Girl difficulty songs on the first try? That's insanely easy.
Even if EBA2 came out, if it doesn't have more notes and complicated patterns, I'll probably perfect S (probably hidden too if implemented) on all songs on all difficulty in 2 days and sell it back to EBgames.
Did you try to re-play OTO1/EBA AFTER you finished OTO2? I am saying this because this game is all about "practice" I remember when i first unlocked the "professors" and i was like "Are you kidding me? This is insanely hard. I am never going to beat it" and after some practice i now can beat the "cheerleaders mode" on invisible and it's piece of cake.
They need to add rap on the new one
Actually there is a "rap" song on Ouendan 2 but the cover was awful and made the song sound different and well... awful.
The original version here
http://www.youtube.com/watch?v=2_eWDilLwRI