Discommunication Alien

00:06:211 i think you should have double note here and at 00:06:387 aswell, for same sounds. Also you could add a singlenote somewhere at 00:06:475 for the guitar sound

Suggestion
I think 00:20:152 (20152|1,20240|2,20328|3) - ,these three notes make this part unbalanced.
Maybe move it left into col 1/2/3 or make it like: https://osu.ppy.sh/ss/15087850/df12

00:21:211 (21211|2,21564|1,21916|2,22093|0) -
You use single to express those sound here, but I think double is better.
Because the tom sound here is very heavy,and I think hard diff is ok to make it as double.

i think you can add 1 more note 00:28:799 - in col 3 to emphasize the impact , 1 LN isn't enough to express the song i thought :3

i feel a bit weird if you placing these note 00:32:152 (32152|0,32240|2,32328|0) - like it , its just my personal opinion , how about consider to move 00:32:240 (32240|2) - to col 2 , and 00:32:328 (32328|0) - to col 3 , just like other part that has similiar sound like this section

i dont think this one is a big issue , but i have a suggest for this section : 00:42:387 (42387|3,42564|2,42740|1,42828|2,42916|3,43093|1,43269|2,43446|1,43534|2) - , maybe you can consider to move 1 of those note to col 1 , since the col 1 is really empty and i think it will cause too heavy in right hand , therefore, i suggest you to move 00:42:740 (42740|1,42828|2,42916|3) - to left by 1 col , and then you can rearrange the other part by your own way if you agree with it

i really love your concept here in first kiai 00:57:387 - , its really good and clean , also consistent , but i think you can consider to decide you want to map F sound with double note or single note. for example :

00:58:093 (58093|3) - you make this part as single
00:59:505 (59505|1) - this one too
01:00:211 (60211|3,60211|1) - but suddenly you make it double here
01:02:328 (62328|0,62328|2) - here too

its ok to use double / single , but it will be more good if you can make it consistent xD

01:02:858 (62858|2,63211|2,63564|2,63916|2,64269|2) - these regular note literally a bit heavy in right hand i think , how about rearrange it like https://osu.ppy.sh/ss/15008108/3d20 , or if this one is not suitable with your rhythm , you can rearrange it by your own way too :3

01:07:446 - consider remove a note, for the insane spread that only has one note.

for consistency , i think it should be good if you can move 01:46:975 (106975|1) - to col 4 , and 01:47:152 (107152|3) - to col 2 , same as what you did 01:45:387 (105387|2,105564|2,105740|1,105740|3,105916|1,106093|0,106093|2,106269|2,106446|3,106446|1,106622|1) -

how about add 1 more note at 02:04:093 - for tom sound ? its good for emphasize the impact , also good for consistency too , what you did 02:03:740 (123740|0,123740|1,124446|0,124446|1) - is really good , its express the song so nice imo , therefore , add 1 more note 02:04:093 - will be more good i think , since they has a tom sound and its loud enough

02:15:211 - Here's : "Ah yume ga"
But you only make "ah" as a LN here.
I suggest that using 3 regular notes to express it in hard diff peko.

i realized you following vocal from 02:16:446 - untill 02:27:740 - , its really good because you can consistent following the pitch of the vocal , but i think you miss 1 here , 02:24:916 (144916|3,145269|3) - , how about move 02:24:916 (144916|3) - to col 3 , and then you can feel the different between these 2 note 02:24:916 (144916|3,145269|3) - , because they dont have a same pitch too , thats why i suggest you to move 02:24:916 (144916|3) - to col 3 :3

Maybe make 02:29:328 (149328|2) - ends at 02:29:505 - ?

02:47:858 (167858|0) - Move it col 4 ?

03:06:740 - Here;s double in hard but single at insane.
I think you can change insane into double,or you can make it be single here in hard diff.
Depends on you.

03:19:446 (199446|3,199534|2,199622|1) - Maybe moved them into col 3/2/1 ?