It was a little hard for me to understand what i had to do, collision for a lot of building is off so you can get out of bounds pretty easily, some sound effects are a little scary and i don't get the point of the timer, it never runs out and plays an annoying sound.
The concept is good but it needs a little more work, i still don't understand what is the point of feeding the little rats and i don't know if they can die.