Find the exit

Also you can fall out of the map in level 3. I turned right from the spawn point, ran at the dark wall and fell in a gap between the floor and wall. I like the game though!

In the 2nd level bathroom in the corner by the sink, it's possible to get stuck in the wall if you run and jump directly into the corner, right where the 2 walls meet.

The dog got stuck in a corner and would no longer move. It was the corner where the house wall and the fence meet.