The Nyakuza Metro + Online Party Add-on for A Hat in Time has 8 achievements.
Collect all Time Pieces in Nyakuza Metro!
Collect 10 Time Pieces in Online Party!
Participate in an Online Party with 10 or more total players!
Put 10 different stickers on a single screenshot!
Collect 30 Stickers in Nyakuza Metro
Discover a secret food combination!
Clear an act in Online Party as the person in lead!
Collect your first holographic sticker!