Ahh, the 2000 series. I've played them all on the Wii version, and I'm gonna rate the songs by difficulty (hardest to easiest).
Kitasaitama 2000 (even now it requires luck for me to pass it)
X-DAY 2000 (stupid long strings of notes...)
EkiBEN 2000 (mostly because of the ending)
Tenjiku 2000 (I can do this easily on DS but not on Wii for some reason...)
Soroban 2000 (it's not that hard, but the last go-go notes don't make it easy either)
Taberuna 2000 (there are some confusing strings of notes here, but other than that it's not too hard.)
Kechadon 2000 (I can only play Master Notes for some odd reason. Even then, the notes are not that hard, although it can be a bit hard to read.)
Koibumi 2000 (this is pretty easy for a 2000 song, but, again, the long strings of notes get me.)
Yokuderu 2000 (pretty straightforward, with the occasional string that messes me up.)
Saitama 2000 (it was downgraded to a 9 star, and for a good reason too.)
I hope the new 2000 song is even more challenging than Kitasaitama. Oh, and have 999 notes in it as well.
EDIT: I just saw the Taiko 13 site, and it looks like we'll be getting a new 2000 song called はたラク2000.
Oh, and what's with Hayasaitama 2000 and Kitasaitama 200?
