General:Did a quick research on metadata, looks good.
I found the timing at the beginning to be off, but this is the band's fault mostly, as it shifts between earlier and later than your current timing. I'm not good with precise timing, though, so I'd ask someone else to double-check it.
HP 5 is really harsh considering the length and the high object count, 4 would be much fairer, or at least 4.5 (seriously, I've missed a few notes and all my built up HP is gone instantly, it's really frustrating).
I'd also recommend OD 7 for this. Especially in the 240bpm part which is much more intense, notelocking is something you want to avoid, 6.5 is definitely not enough, but anything above 7 might just be frustrating to acc in the 200bpm part.
BG coordinates: for me, 0, 120 works better.
09:16:734 - onwards: what are these green lines for when there's nothing? Remove these, or add a spinner. Also change sampleset from soft to normal if you keep them lolz
[Demise Oni]
00:29:056 (123,124,125,126,127,128,129) - ddkkkdk follows the guitar's pitch better
00:36:368 (175) - move this note to 00:36:618 -, the drum you're mapping lies on this tick
00:43:556 (247,248,249) - I'd make this either kdd or kkd like 00:44:556 (258,259,260) -, follows both guitar and drums better and flows smoothly
00:54:556 (366,367,368) - kdd would be nice to show rising pitch in the guitar by adding a kat on the triplets each downbeat
00:57:556 (397,398,399) - ctrl+g, current pattern implies the pitch is going down although it's going up
01:02:806 (459) - either way works fine here, but I'd change it to don for flow and structure purposes (consistent with 01:59:306 (1092) - )
01:06:618 - why are you skipping this drumbeat? I think something like this sounds better while keeping the flow (density-wise the current thing seemed odd too, this is a bit more balanced)
01:12:368 (564,565) - this should be ctrl+g'd too to follow the overall vocal emphasis
01:17:556 (619) - kat for consistency?
01:32:618 (778) - odd to have a don here when the drummer is blasting the snare drum in your face, should be kat for sure and also it's neat to differentiate the pitch of the vocals (kats measure the stretched note, the down at the end implies a new phrase and lower pitch). same applies to 02:29:118 (1415) -
1/3 part looks good.
01:52:056 (1009) - don to make the pattern less confusing and to give contrast to the higher-pitched notes
01:52:243 (1012) - kat for flow and pattern purposes, also sounds better in relation to the decreasing pitch
01:52:493 (1016) - not sure about this, but kat is going along nicely with the pitch. I understand it if you wanna keep impact on 01:52:556 (1017) - though
01:52:806 (1020,1021,1022) - this sounds definitely like 1/4, not 1/3
01:53:556 (1030) - honestly I find that slider questionable here, there's no note hold to emphasis with this, in fact, it's still progressing
01:56:493 (1060) - this could be kat for the high pitch too
02:08:931 (1201) - kat, vocalist is singing a new note
03:11:431 (1871) - kat again, the guitar is still holding its pitch while playing another note on this tick
03:28:118 (2040,2041,2042,2043,2044,2045,2046,2047,2048) - I can see why you'd map kkkdd here, but it honestly plays really weird. I'd change both to kkddd, not only for playability but also to accompany with the kkd afterwards
03:37:618 (2141) - and 03:41:618 (2183) - should both be dons to accompany with the ddk kdd structure in this part and to differentiate this from the kkd dkk part after that, where the kkddk suit much better
03:50:056 - shouldn't the kiai begin here instead of 03:49:556 -? it's super odd to start it before the new section actually begins, the guitar is just introducing, but not starting it.
03:51:931 - OR 03:52:056 - consider adding a note on either of the timestamps to avoid iffy 3/2 gaps
03:56:972 (2322) - I'd change this to don to express the peak on better
04:01:264 - since you're mapping 1/6, 1/3 and 1/4 in the same stream, adding a note here should be alright, the sound is clearly audible (I'd ask around if this is acceptable tho if you consider applying it)
06:12:911 (3100,3101,3102) - I suggest either kkk or dkk here, the snares are clearly audible and it'd be weird leaving them out
07:10:136 (3413,3414) - and 07:10:286 (3415,3416) - I'd ctrl+g notes on both timestamps, to me it follows the guitar more accurately
07:54:361 (3773,3775) - ctrl+g would sound nice here, a single don between a ddkk 1/3 and the kkdkd 1/4 gives a very nice contrast
the guitar is playing 1/6 between 07:59:111 - and 07:59:261 -, consider mapping this too. it's understandable if you don't want to make this too difficult, though
[]
In summary, I think the 240bpm part needs more work, while the 200bpm part looks fine to me for the most part.
I do like the song, but I don't really agree with the approaches you took in some parts, so maybe I missed your intentions with my suggestions /runs