When you r plying with other and one last life is remaining..... In android press the home key.... Than open task manager and END the bike race......... Than open it again now you will have 3more life....
Add Me ...... Ghost Bike..... 20 fb frnds... Thank You
Check out the video below to see how you unlock Super Bike and Kids Bike. You will need to download iPhone Explorer which you can get from this link http://goo.gl/qFfro if you don't have it already to do it though.
I think this only works on samsung galaxy ace 2 if you play the multiplayer whitout an internet connection ( whit wifi but you do not no the password and the pop up for wi fi connectin pops up when you are plaing the multiplayer you just cancel the pop up and you will have three lives again