Escape From Okpo Land

One day you are going to your friends home for the first time. While going, you are watching the roadside scenery along the way and enjoying it. After a few minutes you see the abandoned amusement park on your way. So at that time you are planning to visit that park. You are visiting the park lonely and you forget the path. Unfortunately the main door is locked. So can you please find the related objects and solve the puzzles to Escape From Okpo Land very soon.