I think I broke the game on the third level. I managed to get past a few dogs but then, seemingly ended up in a situation where no matter where I moved, I couldn't move, even going to the right. No dogs, no sounds, nothing.
From a general standpoint, I wish there were footsteps, and a way to actually learn the approximate direction of where the door is rather than just blindly stumbling around in the hopes that you can find it. It's also unclear if a dog is in front, or behind. However, this is a good first attempt.