Thanks for the video and feedback!
I agree that the sound fx are very very minimal, which does make the experience feel a little shallow, I was running out of time so I couldn't add more, same goes for the background as well.
As for that glitch, I've never seen/heard of that one before. Though, I have an idea why it might be happening so I'll be sure to fix it if I update the game, same with the other feedback.