Experience the flashback in the first chapter.

Finish the first chapter.

Experience the flashback in the second chapter.

Open all of the of flasks in the minigame in the second chapter.

Finish the second chapter.

Restore function to the turbine in the factory in the third chapter.

Experience the flashback in the third chapter.

Pull the trigger of the whistle in the train cabin in the third chapter. Twice.

Finish the third chapter.

Experience the first flashback in the fourth chapter.

Use the remote controller to move the ship through the pool and into the fountain in the fourth chapter.

Make all parts of the armillary sphere move at the same time in the fourth chapter.

Experience the second flashback in the fourth chapter.

Finish the fourth chapter.

Develop all four photos in the dark room in the fifth chapter.

Experience the flashback in the fifth chapter.

Read all six egyptology memos at the expo in the flashback in the fifth chapter.

Finish the fifth chapter.

Collect all the posters, letters and other documents in the second part of your journal.

Experience all the different variants of your memories.