Life is Strange True Colors has 25 memory collectibles, spread throughout the 5 chapters of the game.
If missed on the first run, you can use chapter select, and
replay any scene for collectibles. Using this mode, your decisions and actions will not be saved to your playthrough and you are free to explore. The scene selection screen will also show an icon for how many collectibles you've earned in each scene for easy reference.
Chapter 1: 0:290:29 - Memory 1 (Riley Letter)
1:01 - Memory 2 (Crack)
1:24 - Memory 3 (Business Card)
1:47 - Memory 4 (Helmet)
2:17 - Memory 5 (Phone)
Chapter 2: 2:492:49 - Memory 6 (Button)
3:18 - Memory 7 (Rent Check)
3:41 - Memory 8 (Umbrella)
4:03 - Bird Spotting Achievement/Trophy
5:13 - Found Dog! Achievement/Trophy
6:14 - Memory 9 (Gummies)
6:42 - Memory 10 (T-Shirt)
Chapter 3: 7:157:15 - Earworm Squasher Achievement/Trophy
8:39 - Memory 11 (Bomber Jacket)
9:04 - Memory 12 (Appointment Slip)
9:26 - Memory 13 (Old Paper)
9:53 - Memory 14 (Valkyrie's Dish)
10:22 - Memory 15 (Dollar)
Chapter 4: 10:4610:46 - Memory 16 (Pressed Rose)
11:06 - Memory 17 (Drum Kit)
11:24 - Exactly 731 Achievement/Trophy
12:48 - Memory 18 (Microphone)
13:11 - Memory 19 (Polaroid)
13:38 - Memory 20 (CIT Sticker)
Chapter 5: 14:0714:07 - Memory 21 (Mom's Keys)
14:36 - Memory 22 (Business Card)
15:03 - Memory 23 (Guitar Strings)
15:22 - Memory 24 (Pendant)
16:04 - Memory 25 (Bomber Jacket)