The game became good, when there were so many traps and mice that they started seriously interacting with each other. Before that it was a bit too easy. Other thing- some sound would help. I often use https://freesound.org/ for my projects. Many of the sounds there are licensed in a way that lets you use them for free if you credit the author.
Other than that, I have to admit I had a bit of fun :)
Keep up the good work!