Missions is a term in A Hat in Time that includes all of the individual Acts and Time Rifts within the game. Listed alongside each is any content or motif that is unique to the mission itself and any mandatory tasks for its completion.
Nyakuza Metro is similar to Alpine Skyline in the fact that there are no set missions, but instead, the player can free roam throughout the stage. The replacement for peaks is stations and manholes, which both have special ways of gaining Time Pieces.
Time Piece Locations:
This is the central hub of the Metro, where the Empress' jewelry shop/base of operations is located. Many food carts and Nyakuza members can be found here among the endless army of cat passengers.
Yellow Overpass Station
Yellow Overpass Station is an open and spacious area that also encompasses the area above the Main Station.
Green Clean Station
Green Clean Station is a smaller, more calming area with lots of cat vacuums and a sushi restaurant where the Time Piece is.
The only non-station area of the chapter, as well as the only area without a manhole, this chapter links it's rooms together with narrow tunnels and many train-jumping areas.
Pink Paw Station
This area is located over a massive pit, so staying on the trains and having the Hookshot badge is key.
Yellow Overpass Manhole
The first manhole area is located under Yellow Overpass Stations. There are many food stores and dining areas here.
Green Clean Manhole
This region of the Metro is filled with cat vacuums and food stalls, plus a Time Piece in a shady-looking place above a store.
Pink Paw Manhole
This area is special, as it has you jumping trains to collect Power Pons in order to gain your Time Piece. Be careful not to fall!
Hat Kid steals back her Time Pieces from the Empress, but has a million-dollar bounty on her head now! Help her escape the Metro, the Nyakuza, and the Empress before it's too late! The Escape Tunnels are only accessible here.