What you have to do: Flip around all the images before you run out of time. The trick is to touch the images just once to prevent it from flipping around. The great thing about this game is that you can make your own level by taking a picture before and after. Train your finger gives you the possibility of playing it with friends and family. The only thing you have to do is press the player's button and change the name. Also the game has the option to be played without speed, sound and background.