Cute game - not sure how to open the first door though. Also I was quite suprised of the walljump requiring to press away from the wall - might be something useful to write down in the controls.
Played a bit more, I like the buble idea, and as Corny said - yeah the tune is a BOP!
One note regarding the keybinds - consider also adding physical wasd binds instead of arrows - some keyboards don't have arrows, or at least are not in the standard layout, which makes them hard to use!