Subway Surfer is a good game. It's entertaining... most of the time. Sometimes, the game will soft crash after you have died after you have clicked the watch ad button. It doesn't seem to connect those times. Then, when you exit the game because you can't do anything, any boards you used are not returned and progress towards the daily rewards meaningless. Apart from that and a few visual glitches regarding power ups, it's a pretty cool game.