Nice job! Great that you also have music and sound effects.
I found a little bug, I suppose, where I would fall several level below almost everytime wince the holes in the ground appear above each other very often.
Regarding sounds, there might be too many. Almost every action has a sound effect, which might be unnecessary.
I understand that all sounds are justified in a way that each is attached to an action, but I still don't think each action has to have a distinct sound. Sometimes it's fine if a character doesn't produce a sound on landing, for example.
There's one famous video game reviewers (whose name evades me) who points that out in one of his reviews and I thought that it was a very valid feedback.
And you're right, toning down some sounds can be enough to make it more organic.