Power-ups that you can pick up while playing are:

* Jetpack which allows you to fly over all of the trains and
  collect a trail of coins along the way.
* Super Sneakers will make your character run faster than normal,
  and will pick up any coins under them. 
* Coin Magnet will collect all of the coins in the vicinity around
  you. 
* 2X Multiplier will double your score while it is active.
* All of these power-ups only last a limited time, so make sure 
  you take advantage of them while they’re active.