2D Isometic Complete Cartoon City Set, is great for mobile games.

The package contains:
Vehicles: Ambulance, bus, two cars, police car, taxi and one truck ( each vehicle included has a four directional images).
Buildings: 13 different kinds including a hospatal, petrol bunk, pharmacy, police station and school.
Props: 11 different kinds including trees, bus stop, dust bin, fire cylinder, four type of barricades , two types of signal lights and telephone booth.
Four type of road sets.

I added three different types of planes (this plane can be used for multi-purpose useful like building floor, building path and footpath).

You can create your own city using this package.