Complete the Training Course in Multiplayer

In Blood Feud, reach the Guild meeting without ever breaking stealth

Complete all Safehouse Puzzles in Campaign

Kill 30 enemies with the Line Gun.

Create the Master Security Override.

Pursue Nicole's investigation.

Find the Peng Treasure.

Cut off Ilya's hand

Kill 30 enemies with the Force Gun.

Complete Chapter 10 on any difficulty setting.

Write a perfect poem for Natsuki.

Spend enough time during the poem minigame for the music to loop.

Hit a flag with a golf ball four times. (The Ballad of Gay Tony)