Droid Up! - Free game for android

Hey Community,

I’d like to get some feedback on my new (and first real) game for Android.
The objective is simple: Tap to jump up, get as high as you can without hitting any of the obstacles.
Of course there’s a Highscore and you can unlock skins.

https://play.google.com/store/apps/details?id=com.cmeiners.droidup

Please let me know what you think about the design, steering, advertisement etc. as I’m fairly new to developing Apps and really need some guidance on what users like and what they don’t like.

Thanks,
Claas M.

Push?