Thanks for your feedback
Yes, unfortunately there is a problem on level 3 where you can just barely pass between the dogs, leaving the "maze" - I have fixed it but haven't uploaded it yet. The new version should be up today, as a separate game (I will keep the jam version as it was submitted).
I also added a hint on start of every level, saying in which corner the door is located.
I am thinking about how to implement the footsteps to not be too distracting but will probably include that as well in the next build.
Thanks for your feedback again, I am glad you liked it even with these issues :)