There are plenty of hidden collectibles to find in Life is Strange: True Colors. They don't require any complicated method to find, so those after an easy Platinum or full gamerscore should take advantage of the easily obtainable Memories scattered about each chapter.
As Alex has empathic abilities in Life is Strange: True Colors, these random items offer her a glimpse into their owner's thoughts and feelings. There are 5 Memories to collect in Chapter 3, with each one unlocking their own Trophy/Achievement when interacted with.
Remember to hold down the button that lets Alex use her power in Life is Strange: True Colors to see the emotion when a Memory is located (L2/LT on consoles). This activates her abilities, revealing a glow that can be interacted with. There are 7 Trophies/Achievements that can be earned by finding all Memories in Chapter 3.
All Chapter 3 Memory Collectible Locations in Life is Strange: True Colors
Memory 1 - Bomber Jacket (Black Lantern Bar)
At the beginning of Chapter 3, Alex has to clean up the Black Lantern bar. While searching for the messy dishes, go to the restrooms to find the first Memory location, a Bomber Jacket belonging to Jed. The restrooms are found just past the 'Wall of Shame' and Gabe's plaque.
There aren't any more Memories to find in this scene, but there is a patron with a song stuck in their head. If Alex finds out what the song is and plays it, the Earworm Squasher Trophy/Achievement will unlock.
Memory 2 - Dollar (Park)
The second Memory is a Dollar that falls from Ethan's pocket after the 'Direwolf' battle in the park. After finishing the fight, turn around, and the dollar will now be on the ground. It can be interacted with at any time during the LARP; make sure not to walk past it when returning the three jewels, as it will trigger the next scene.
Later in the chapter, Alex will have to make one of Life is Strange: True Colors' most important decisions with Charlotte, and the scenes ahead will sow the seeds for this moment.
Memory 3 - Appointment Slip (Outside the Black Lantern/Gullweather's Tavern Door)
After exiting the park, head left towards the lake. The Black Lantern has had a makeover and is now called Gullweather's Tavern for the duration of the LARP. Outside its door is an appointment slip belonging to Diane. If players accidentally missed this third Memory, don't worry. As Life is Strange: True Colors has ditched an episodic structure, every unlocked scene and chapter is available from the main menu to replay at launch.
Memory 4 - Old Paper (Black Lantern/Gullweather's Tavern)
Continuing with the story will take players into the tavern. Have a conversation with Duckie, and then head to the section with the pool table to find the third Memory: a piece of old paper belonging to Duckie.
Memory 5 - Valkyrie's Dish (Record Store/Magpie Emporium)
The last Memory is a little hard to spot. It's in the record store with Steph, which she has renamed the Magpie Emporium for the LARP. Valkyrie's dish is behind the counter, left of the glowing guitar. Interact with it to pop the "Valkyrie’s Dish" and "Memory Collector" Trophy/Achievement for collecting all of the Memories in Chapter 3. There's also a Life is Strange Easter Egg to be found in the store.
Every chapter of Life is Strange: True Colors was included at launch, so players can immediately jump into the next act or repeat Chapter 1 and Chapter 2 to find all collectible Memory locations. After all Memories in the game have been found, "Haven Historian" will also unlock.
Life is Strange: True Colors is out now for PC, PS4, PS5, Stadia, Xbox One, Xbox Series X|S, and will release later for Switch.