The idea here is to park your car in a small space. If you think that will be an easy job then here are the obstacles. Of course, the parked cars are always there, but to top that, the entrance to the parking area is so small that it would be easy to crash your car if you are not careful enough. Needless to say, a small mistake would mean crashing your car and ending your life.
Fortunately, for you that this is just a game or you might end up on a hospital or a cemetery as this game is that serious. Lots of people are practicing playing parking games so they can perfect their car parking.