Nice game. Good implementation.
Music volume can be lowered a little, and having a button to quit the game (like Escape) can be useful. When you die, the scene is not reloaded, so all the obstacles remain in the same positions. In some cases this is OK, in some other cases this may make impossible to complete the game. When inside the "brick walls room", the camera clips a little bit, so it is not 100% easy to exit.
Globally a good game. Congrats.