Obtained the heirloom, heard one final message...

You have escaped, but something still draws you back.

Yep, that's me. You're probably wondering how...

Use a developer commentary node.

The truth has been revealed, and the curse has been broken.

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.)

You have saved the universe with your incredible shmup abilities.

Beat the game on Hardcore difficulty.