Oh my. Good music, great art and animation, slick and responsive gameplay, engaging story, endearing characters... You guys clearly know what you're doing.
I have to voice some criticisms. While I appreciate the low amount of hand-holding in the tutorial, there were some times when I wish things had been made clearer (the blocks you can only smash from one side particularly confused me). I also hope you will seperate the buttons used for dash and block, as I found myself often doing one when I wanted the other. I'd also suggest that you get a script editor. While the writing itself is excellent, there were often grammar errors and awkward word choices that could be easily ironed out.
I want you to know that this short demo has me immediately sold. I was glued to my screen from beginning to end. You most certainly have my support for seeing this become a reality!