Sometimes, I can't see where the player is because the camera clips through the building. The player can stick to objects when in mid-air.
It's a neat concept to have the player find the notes spawning in the home and returning it to the black square. I personally would have wished that if you found the note, it'll tell you the food that you need to grab to return it to the black square. That probably would have made the gameplay more engaging besides just finding a note and going to the black square.
I like the secret ingredient at the end.