Honest feedbacks needed

Hi, I just published a new game to play store. I request all of you to please download the game, play it and reply to this post with your honest opinions.
Here is the link: https://play.google.com/store/apps/details?id=com.aqvin.biker

I am planning to spend some money in marketing. Would like to know if it is good enough. I know it is not a new idea. But it is an honest attempt to make a decent game.

Please let me know what you think of the game. Any advice will be appreciated.