I'm gonna be honest and say that, in my opinion, this is a full-on Flappy Bird clone, unlike what the other commenter said, but it's not necessarily a bad thing.
The mechanics are simple and work well, I haven't experienced any bug for now, although I have a couple of things I'd like to say.
First, is there a reason why the coins/stars and the tubes move at a different speed? I'm guessing it's to make the game more challenging but it feels a bit weird.
Also, I feel like the tubes and background kind of fuse together at one point, when you're either too focused on the game or when it starts going faster. I would personally advise to add or change something so that the distinction is more clear. Not really necessary though.
All in all, it's pretty fun and who knows, maybe I'll try beating the high score!