This is awesome! Very simple but appealing graphics and the game itself is super fun! Could be made into something big!
However, the "next level" or "previous level" buttons were maybe unnecessary? Could just be me though. Overall fantastic job!
Thank you and thanks for playing :) Those buttons are there for anyone that might need them. I personally find it frustrating in a game jam when I'm playing a good puzzler and get stuck in a single level and miss out on the rest of the game.