A brilliant concept and a unique take on the theme! If there's one word I had to describe this game, it's 'charm'. I love the dogs animations and the burrowing mechanic reminds me of Mina the Hollower! It works perfectly as a platformer. There's a lot of polish here too - the addition of a tutorial level is a nice attention to detail. The only thing this game is missing is music! Other than that, excellent submission. Well done :)