Fun game idea! On the second level, I was surprised when I realized that the cat had a lives-bar. I stuck around to see how it got used.
It was hard to shake off the dog once it saw you. You could hypothetically dash away from it to get far away, but I kept accidentally picking up mice and losing my dash ability. Maybe allow the player to continue dashing while holding mice? Or allow the player to release the mouse so you can keep dashing?
Thank you for making this game!