This game is cool, but it has its problems...
For me, both the game over screen and the main menu were overscaled. They didn't fit the screen because they were too big. But that wasnot a game breaking problem.
The player also starts off camera. I even thought the game wasn't finished / working properly. To make the player appear, you have to constantly dash upwards.
Lastly, this is not a problem, but rather my personal opinion: For me it makes more sense if you dash towards the direction you're moving to instead of going towards the mouse cursor.
I see potential in you, good job!