Not much is known about Mafia Town, other than it used to be a pretty normal town before the Mafia of Cooks settled in.
No one seems to remember what the town was named before the Mafia came, evidenced by talking to a Mafia Goon near the main plaza. Mustache Girl's hideout also has a scribble on a rock that further suggests that no one knows what the original name was.
In addition to having a different name, Mafia Town used to look very different and the people who once lived there were quite the experts in making cannonballs.
Mafia Town is divided into 4 quarter areas, each separated by a water stream. The Eastern quarter area houses the town port, the North-West area has a small beach and the South-West area contains the main plaza.
Main Plaza
The main plaza is the place where Hat Kid discovers her trusty umbrella after crash-landing in Mafia Town. Three shops are found here, these shops being the "Juice Bar?", "Spicy Burn" and "Bloomin' Idiots".
Beach
The beach features a variable shift in music to a more coastal version of Mafia Town's main theme. In the alpha build, it was also the home of a Time Piece, won by completing the Balloon Race in Mafia Town act. There's also an entrance to the cave under Mafia Town, but it's blocked by two mafia guards.
Port
The location of Seaside Spaghetti, and the lighthouse. The black market can also be found here, although the entrance is blocked by the mafia. Most Mafia Goons in this area wear sailor hats.
Cavern
In the center of the island, under the ground, a large cavern surrounds the island's geyser. There are four entrances to the cavern, guarded by goons on the boss's orders. Three of these entrances are on brick roads, and one can be found on the beach. Three of the entrances, including the beach one, have cannons that will shoot tourists through the central cave to the other side of the island. The cavern has some luminescent crystals, some mine cart tracks, and of course the geyser spout.
Mafia Headquarters
The Mafia HQ is where the leader of the Mafia holds residence, and is built on top of the jet of a continuously spewing giant geyser. How they managed to do this is a trade secret. The only two ways to get there are by cannon or hot air balloon, the latter of which is exclusive to Mafia members. Upon arrival, two buttons must be pressed simultaneously to open the door.
The main doors open into a restaurant, which is full of roulette tables and slot machines. The slot machines take gems, but they do not work. The Mafia who hang out in this area are very exclusive, and don't take kindly to intruders.
On the side opposite the entrance, there is a bar, and behind that is the kitchen where the Mafia cooks their food. But unbeknownst to them, Cooking Cat lives in the rafters, where he prepares real food and switches it with the Mafia-prepared garbage, which he is pretty sure would poison anyone who actually ate it.
Next to the bar, the entrance to the theater is guarded by a goon, ready to deny entrance to anyone not of the Mafia. This is also where the Mafia boss makes his home. Here, he personally makes an example of the worst of troublemakers in front of a live audience, in what he calls "true Mafia style."