This game is very good! The main issue I had was that sometimes the hitboxes of objects seemed to match the visible sprites exactly. This occasionally caused me to get stuck in corners or small gaps between objects.
Maybe that was intentional, since it also creates some interesting platforming possibilities, like jumping off the sides of boxes to reach higher places.
Also, my game is about an agent rat too! It's pretty cool to see how we both took a similar idea and ended up creating completely different games.