A long ago, I made a 30min video including all the items you can pick up through the game.
In the comment section, someone told me to create a guide just for this, so here it is.

It seems that this video has been really helpful for many players and it seems also it is easier to follow than the old other guide already available on Steam.

I start the game from the beginning and I collect everything in 30min. You can access to each single items by clicking on the time of where the item appears inside the description. (You need to go on Youtube for this feature)


Description of the video :
Hey ! This description will list all items/collectibles of the game with the time where they appear in the video.
Please like the video if its helped you.
Note 1 : I reset the game to show you how to pick items without skills you unlock further.
Note 2 : At the level 3 you'll see "40" as my max ammo. Don't worry, I just used my old 100% video and I didn't have found the "Ammo ++" upgrade on the level 2. So, don't worry :)

Logs : (Go to "Story" then "Logs" to see what you need)
01 Roots = [1:51] / Level 1
02 Forms = [2:24] / Level 1
03 Logs = [2:35] / Level 1
04 Levels = [3:44] / Level 1
05 Respawn = [4:10] / Level 2
06 SwitchGun = [4:35] / Level 2
07 The Call = [7:00] / Level 2
08 Unknown [8:07] / Level 2
09 Dash = [9:31] / Level 3
10 Paths = [10:40] / Level 3
11 Valley = [12:27] / Level 3
12 Home = [10:50] / Level 3
13 Power = [20:10] / Level 4
14 Directions = [15:26] / Level 4
15 Memories = [16:33] / Level 4
16 Self-awareness = [17:24] / Level 4
17 Destiny = [22:35] / Level 5
18 Knowledge = [26:01] / Level 5
19 Lost Ones = [25:15] / Level 5
20 Summit = [28:09] / Level 5
Fabien = [2:11] / Level 1
Adrien = [6:48] / Level 2
Antoine = [14:00] / Level 3
Arnaud = [19:16] / Level 4
Aymeric = [24:00] / Level 5

Musics : (Go to "SpeedRun" then "Tracks" to see what you need)
Purple Skies = [2:19] / Level 1
Raining Asteroids = [3:18] / Level 1
Timetrap = [6:23] / Level 2
Infinite Rings = [7:21] / Level 2
Razor Dust = [13:26] / Level 3
Clouds in the Void = [13:20] / Level 3
Solar Wind = [15:29] / Level 4
Fog Escape = [21:43] / Level 4
Eternity Towers = [22:44] / Level 5
Diffraction = [25:37] / Level 5
Negative Wave = [1:24] / Level 1
Shining Gate = [2:52] / Level 1
It, my friend = [5:08] / Level 2
Reborn = [6:12] / Level 2
Timeless = [11:13] / Level 3
The Hive = [13:41] / Level 3
BlackHole = [14:59] / Level 4
Jaws = [18:15] / Level 4
Journey = [26:54] / Level 5
Back of Distortion = [23:27] / Level 5
All others musics are already unlocked.

Sparkles : (Unlock maps in the SpeedRun mod, go there to see what you need)
Alpha Pheonicis = [3:32] / Level 1
Beta Centauri = [1:15] / Level 1
Gamma Lyrae = [7:07] / Level 2
Delta Corvis = [5:17] / Level 2
Epsilon Pegasi = [11:56] / Level 3
Zeta Aurigae = [12:11] / Level 3
Eta Persei = [16:20] / Level 4
Theta Cassiopeiae = [18:44] / Level 4
Iota Carinae = [22:00] / Level 5
Kappa Orionis = [23:56] / Level 5
You unlock "Clement, Nicolas, Wandrille" levels by unlocking sparks.

Upgrades : (Go to "Story" and look at "Skills" to see what you need)
Ammo+ = [3:00] / Level 1
Ammo++ = [4:40] / Level 2
Ammo+++ = [23:47] / Level 5
Gauge+ = [8:48] / Level 2
Refill+ = [15:10] / Level 4
RocketJump+ = [10:10] / Level 3

Thanks devs and everyone who helped to have made this game.

I hope this video was useful for you ! Thanks for watching :)

I spent many hours to make these routes and run this walkthrough.
Thanks to the others guides and videos that was here before me, it helped me a lot !

If anything is wrong with my english, I can still fix it. Just leave a comment and I'll change what is wrong.
Have a good game !