Parking is a skill and skills need some practice. It takes a lot of time before you can be good at whatever it is you want to master. Those, who are saying that parking is easy is sure a liar since they know that it isn't easy. One mistake and you can end up in the hospital, jail or the cemetery.
The game is played via mouse and the idea here is to park your car in the parking space. You need to drag the pointer and click to where you want your car to be. However, that won't be easy since it won't be a straight line and there are lots of vehicles in front of you.