A Hat in Time – How to Activate Nyakuza Metro Preorder Bonus

There is no explicit reward for beating the adventure, other than getting to see the silly writing. The steps are:

• Go south
• Bark
• Go south
• Go south
• Talk Barry
• Go north
• Look
• Jump to conclusions
• Go south
• Talk Seven
• Enter tower
• Use sword
• Go up
• Go Dennis

According to the Steam store page for the DLC, Death Wish also requires 27 Time Pieces.

If you are eligible, you should get an "Intruder Alert" cutscene either when you start the game (if you already have 27) or after you collect the Time Piece, showing you Snatcher sitting by the edge of the ball pit.

You should also be able to access the Death Wish map menu from the pause menu.