I found few issues that should be fixed in my opinion.
[Insane]
01:09:424 (1,3) - Swap NC. Other diffs also have these NCs swapped and you've even done the same on 01:02:452 (4,5) and more other places. So it fixes consistency and also it was in "red" part of a map and it was executing its end.
02:18:719 (1,3) - ^ Same reason, same problem
03:19:564 (1,3) - ^
03:33:086 (1,3) - ^
[Reiji's Hard]
03:45:128 (1) - Use red color. This is the only one diff from four that is not using it.
[Storyboard]
Sprite,Foreground,Centre,"SB\blood.png",320,240
F,0,81406,81617,1,0
F,0,81828,82040,1,0
F,0,82251,82462,1,0
F,0,82673,82885,1,0
F,0,88166,88378,1,0.01567815
F,0,88589,88800,1,0.04688656
F,0,89011,89223,1,0.07816891 0.07 is too high, if you look on 01:29:283 in map, you can see it stays stuck on the same fade, it is visible when it shouln't be. Fades above this one are not recognizable, so they don't need to be fixed.
F,0,89434,89645,1,0.1093773 Same issue as ^
F,0,89857,90279,1,0
F,0,101688,102110,1,0.03773582
F,0,102533,102955,1,0.03773582
F,0,103378,103800,1,0.04457654
S,0,103378,103800,1,1.032
Sprite,Foreground,Centre,"SB\blood2.png",320,240
F,0,164223,164434,1,0.02080663
F,0,164645,164857,1,0.06251849
F,0,165068,165279,1,0.1041317 Same issue as blood.png
F,0,165490,165702,1,0.1458436 ^
F,0,165913,166335,1,0
M,0,174364,,241,302
S,0,174364,,1.176
R,0,174364,,-1.344
F,0,174364,174575,1,0
M,0,180702,,80,255
F,0,180702,180913,1,0.004739344
M,0,181124,,475,339
F,0,181124,181335,1,0.004739344
M,0,184504,,303,302
F,0,184504,184716,1,0.0283237
That's all I considered quite important, other things should be less recognizable, however I noticed these while playing.
If you have any asks tell me in-game. Also, I hope you won't ignore this only because it is already bubbled, I'm sure grumd would rebubble it~
Great map :3