A little bit tedious (e.g., if the cheese was at the wall and you shot it, it wouldn't expand, meaning you had to reset) but it was a nice lil' puzzle platformer.
Thanks for the comment! In post-jam versions, I hope to add some feedback to show if an object has room to expand--or maybe remove the check altogether, as the engine is actually pretty good at handling objects spawning slightly inside of each other. It remains to be seen ;-)