Fairly good game, feels polished, uses the assets in a pleasing way, and I personally found the constant gravity challenging, yet balanced enough that you can get pretty far without getting bored.

I found a bug that happens when you fly out of the scrolling part of the game to the right where you are INVINCIBLE 

here is a screenshot:

aside from that it is a very fun game , maybe not the most deep or interesting gameplay but a fun little minigame 

A flappy bird kind of game. 
If you like that kind of games then this one is very good. I like the music.
The particles out of the rocked are also nice but there is something wrong with the transparency that makes it look ugly. that is really a shame because beside that is the game very polished.

very epic