Atama

You are the best player!

Obtained the heirloom, heard one final message...

Use a developer commentary node.

Obtained the actual heirloom and discovered the truth.

Obtained every journal entry in Kisaragi. (In a single playthrough.)

Escape from the forest without using the heirloom. (On Normal or Hardcore.)

Complete the game in under an hour. (On Normal or Hardcore.)

Beat the game on Hardcore difficulty.