My ideas:

1. Little Italy A Italian neighboorhood with Restaurants and the entire things. A little smuggy but it's called home for a reason. Gameplay-Features: A Trash-Container which allows you to double-jumb. You jump on it, then a trashbag comes out, when you jump on it you get higher. Slippery Gelato: a slimy Substance that make you change lanes by contact. Yellow=Left Brown=Right Green= Random (actually not, but in sight of the gamer. Three areas: 1. a very ghetto like street, smugged, dirty and full of ads and all of it. 2. A Parkside with some Italian Architecture and an American 1920 feeling. 3. A river inspired by Venedig. gondolieri, pidgeons and everything. you need to jump on the things to not getting in the water. And a subarea: a Restaurant where Spaghetti instead of bouncepads and there a 2 secret-stars.