Gem system makes no sense
So you need gems to unlock different character and locations. I have absolutely no idea how to earn gems and the way the game is designed, you can’t even see how many gems you have. There are minor glitches and the game isn’t that responsive but you learn easily how to deal with it. (swipe up to jump RIGHT before you hit the tires, swipe down to slide EARLY. Also don’t waste your time using gold to keep going after crashing. There’s a good chance you’ll end up getting an ad anyways and not being able to continue