Mouse controls? Mouse controls??? I get it. eheheheheheh.
Anyway. Very cool idea, explored and developed with creativity and skill. I really appreciate being able to retry a level after getting a really high par on my first try--satisfies the score chaser in me.
Something I want to highlight in your art direction is the touch of colour-bleed between tiles. That adds a lovely hand-drawn charm to the work.
Very occasionally the sightline would assure me that my cheese would ping off of a corner, only to sail right past it and leave mice wanting for cheese. Could be a skill issue on my part.
A difficult, but generous game. I really like this.