Hear the singing voice of a little girl.
Save the little girl.
Bring peace to the sad researcher.
Slip through the trap without a scratch.
Take out the queen ant.
Recover a mother's instinct.
Witness the end of one suffocated by power.
Capture a glimpse into the changing mind of a comrade.
Clear the secret stage.
Land at least 5 headshots in a row.
Clear all chapters on the hardest difficulty with an S rank.
Collect all archives.