This is a sweet little game with cut art =D It's a bit too slow for my taste but still fun to play^^

Cute pixel art! You did a great job laying out the levels in a way that got more complex as you went along. Some options for improving the game could be some kind of danger that the cats have to avoid (puppies, kids, or Roombas could fit the peaceful home theme) or maybe a time limit for each level. You could potentially add some cat treats in each level you need to collect. I liked the ending, too! Keep learning and growing! You've got a great start :)