Game is completed for the jam but I will keep doing small updates here and there. I am now working on the Pizza Jam game but since I decided that for most of my games, if not all, I will use the Merlin character and it will be an Action Side Scroller game, I might make some basic "action side scroller" engine changes in this game before moving to another project for the Pizza Jam.

Regarding this project in particular, I will eventually add more enemies and balance the game the puzzles are more important and the pace is slower. But I will definitely add sounds soon. I found out that there are some interesting free sound assets in Unity Asset Store and a music site which offers royalty free music. Links below

https://assetstore.unity.com/?category=audio%2Fsound-fx%2Fvoices&free=true&order... 
https://pixabay.com/music/search/game%20background/

For this game I am highly inclined in using the following music:

Puzzle Game - Bright Casual Video Game Music | Royalty-free Music - Pixabay