Thank you for your feedback! I'm already very aware of the "going through the wall glitch" and it will be fixed in the next update.
In the survival screens I kept the cheese, since making them uncheeseable would pretty much be impossible and I don't want finding the cheese spot to be too difficult, since it's so early in the game.
And getting stuck on walls? I will consider it. Fixing it would be really annoying since I would have to rework the entire collision system.
I'm very glad you enjoyed my game :)