Glad you enjoyed the game and thank you for the review!
We thought a lot about showing players the score and we had versions with the score on the top left. We decided overwise because we didn't want any overlay ui and couldn't find any way to introduce it in the world. I also think it's not necessary but we've received some other feedbacks that would prefer to see the score at all times like you so I'm probably wrong.
We recorded the dudes audios ourselves, the music is just royalty free found on the web and the rest are from sound clouds that we modified with reaper!