Honestly, I kinda dig the music; I wasn't sure at first but did grow on me a little :)
And since no one else has said it - Well done on completing your first Game Jam! Finishing is half the challenge; Not only did you finish, but you also created an enjoyable experience. You ought to be proud of yourself! (heck I'm kinda proud of you lol)
I think, since you're still in the early stages of learning Unity, it would be beneficial to go back to this and a little polish. I would consider adding a little animation (I think a little squash stretch would be perfect for this project) and fixing a bug where the player can stick to the walls (this is a friction problem so you'll need to look into Physics Materials).
But again - great job and well done! :)