---------------------------------WARNING---------------------------------------
Youre going to play a game which requires both of skillfulness and quickness.
Within 20s, you have to tap the screen so that the pig can pass the wall and you get 1 score for each wall.
When the clock appears, let the pig touch it, you will get 5s more.
The wall will change its material after 10 scores got.
If you think you are skilful and agile enough, lets play this game immediately!