Crazy Taxi: City Rush is a free-to-play game in the style of endless runners. You control lanes and turns by swiping in the appropriate direction, and can also use a speed boost, but you have no direct control over the speed of the taxi or the direction it travels.
There are different districts which you can unlock, such as The Beach and Downtown, each of which has a variety of passengers to drop off. Multiple locations are available, such as an opera house, volleyball court, subway station, mall, promenade, and more. In addition to regular passengers, there are checkpoint race missions, tank missions (the purpose of which is to crash into as many vehicles as possible), progressively harder medal missions, and HQ missions, which require full completion to unlock the next district.
A small variety of cars are available to purchase in each district, with more options available by using gems, the in-game premium currency. All taxis can be decked out in various decals and objects for the trunk, hood, lights, and sides, as well as different styles of paints. Taxis can be upgraded to improve acceleration, braking, boost amount, boost duration, and strength (to slam through traffic).