Subway surfer is easy its for 5 plus years the mystery box is only on trains.and the design is nice. When you tap twice, you get the hover board and when you tap 3 times you get the boot. I love subway surfer because its lot of fun to play and the mystery box is the best part of the game.
I saw my friend in my apartment playing this game and now I keep playing it everyday. I play with my cousin and we compete to get the high score. I got the highest score of 20047