[General]*sliderball b0 and b10 are the same. Is that intended?
*Perhaps duplicate the default numbers and use them for score as well? (with the extra symbols, of course)
*Also, some of the numbers have some pixels from aliasing/cropping around them, but it's not too noticeable so it's fine.
*Just thought I'd point out that the first inherited section in each diff (except for Taiko) is unneeded. You can just change the inherited section's sampleset and use that instead.
*Perhaps end the first kiai section at 00:47:659 instead?
*Also, I'd like to see two extra kiai fountains in the last chorus where the music stops/restarts. 02:37:005 (1,2): End on 1, restart on 2; 02:39:961 (2,3): End on 2, restart on 3. I don't think that it's TOO spammy, but I think it's fine with two measures break between each new section just for this epic ending finale.
*Rainbow effects: Perhaps fade the green out from 01:21:645 to 01:22:015 instead of popping to another color before it stops at the end of the kiai. Then, do the same thing for 02:32:573 instead of just abruptly ending the green.
*Also, the rainbow colors are still a bit odd. Red->Orange->Yellow->Green->Blue->Pink->Purple->Loops back to Red doesn't work since $purple is more of a blueish color and just jumps back to $red instead of fading to it. Change $blue,$pink and $pink,$purple to $blue,$purple and $purple,$pink respectively for all loops and try choosing better colors for $blue/$purple (lighter for blue; darker for purple) to make the rainbow effect look much nicer.
*SBmask.png: Maybe fade it out when the song ends at 02:44:209 so that "The Middle" appears then instead of half a beat later. I changed the last two lines to F,0,11848,164209,1 and F,0,164209,,1,0 so see how you like that.
*01:55:631 - Pick some hitsounds already! This is what you currently have:
Relaxing: finish whistle finish whistle finish finish
Average: finish whistle clap whistle finish finish
Tough: finish whistle finish/clap whistle finish clap-I prefer Relaxing's, but at least make them consistent. ;p
[Relaxing]*Drain/OD are a bit low. Perhaps raise them each one tick?
01:56:185 (1) - A red tick note by itself on an Easy is usually unpredicable. I really suggest starting the slider here and adding an extra repeat.
02:34:420 - Ahhhhhhhhh I hate when a note doesn't accompany a kiai fountain. I suppose it's fine, but I'd really like for the slider to end when the kiai starts. ):
02:44:209 (6) - Again, a bit unpredictable for an Easy. How about making 5-6 a slider? Perhaps something like:
http://puu.sh/177q[Average]*Some notes such as 00:26:603 (4,5) aren't stacking due to the low stack leniency. Fix this by raising the stack leniency at least one tick. (You should also check to see if any notes don't stack after raising leniency to make sure I didn't miss any)
00:35:838 (3) - Hmm perhaps new combo this jump? It fits, but I didn't except it at first since this is basically a Normal diff.
01:11:302 (3) - ^
01:54:154 (1) - Felt a bit short/rushed for a Normal. Plus, I don't like that (1) is only a beat after the spinner ends. How about ending the spinner at 01:55:631 (with a finish), and then trying something like:
http://puu.sh/177O02:09:484 (4) - Maybe new combo this? The gap between it and 3 looked strange.
02:19:458 (1,1) - Again, I don't like that there's a note only one beat after the spinner, so could you extend the spinner instead?
02:12:255 (2,3,4) - I think this and 02:35:158 (1,2,3) are the only places in the song where you use a 1/2 stream, which seems a bit inconsistent. They're also a bit more difficult than other places in the diff, so you might want to consider changing them.
02:22:229 (4) - same new combo suggestion for the jump; also, the second part of the second/third choruses don't have a jump at the beginning? o.o
02:43:655 (1) - Unrankable. The second repeat is hidden by the spinner's comboburst. One option is to shorten the spinner and move the slider somewhere else. Or, you could use a non-repeating slider and keep the spinner as-is since that's a bit easier than just a note one beat after a spinner.
[Tough]*Again, I see stack leniency problems (00:54:678 (3,4) for example). Stack leniency will need to be raised at least two ticks to fix this.
01:21:276 (3,4) - I suggest spacing these out just a bit more so that they don't look like fake 1/2 notes.
01:43:625 (1,2,3,4,5,6,7,8,1,2,3) - This really doesn't flow that well. I feel like I have to force myself to really get it right, and that just shouldn't happen.
http://puu.sh/178F or
http://puu.sh/178K should feel muuuch much better.
01:49:721 (1,2,3,4) - Sounds a bit awkward to me. I expected something like
http://puu.sh/178v or
http://puu.sh/178w (I like the latter better since it covers 01:52:491).
02:13:732 (4,5,6,7) - I suggest spacing these out just a bit more so that they don't look like fake 1/2 notes.
02:18:904 (7,8) - ^
02:43:655 (2,3,4,5) - expected jumps or larger spacing here.
[Taiko]*I don't want to break the authentic taiko paradigm, but it bothers me that the kiai starts on the downbeat instead of the second beat. D:
01:55:631 (22,23,24,25) - Expected the sounds to be reversed :s
There's only a few "big" issues in this mod, but the rest are suggestions that should make things much sexier. Let me know when/if you make changes and I'll gladly recheck.