Any character unlocked
Go onto the characters click select on the first boy, then you go onto the girl and hold down select. If you want any other character keep holding of the button select and slide across to the next character or the character you want and take your finger of and click select on the character you want!
Unlocking Fresh faster
Press on the kid with the hood. While selected go over to fresh or any of the other character and press the box where the fraction of the amount you have for that character is. To play as say spike after fresh you'll have to do it while selected hood kid is taken as well.
Two character tokens
Just use your coins to buy mystery boxes, they contain character tokens and coins. Or if you run in between 2 trains than you will flip back and hit the screen and so will the cop and his dog.
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.
Bump Into Barriers
Jump early or jump late and you'll bump into the red and white barriers without being caught by the inspector and his dog.
A cool way to make extra coins is by having your friends run so you can earn additional money. For each 50 friend runs, you will earn a coin bag with valuable coins inside.