I like the idea and I think this could be a lot of fun with some added polish.   I would get stuck on walls when jumping into them.  Not sure if this was intentional or not - cats are extremely good climbers after all.  If it was, then I think a wall jump would be more satisfying.   The background is cool.  If you gave it a parallax effect it would look even better.     Meow mechanic was funny; maybe make it so that meowing gets the dog's attention - kind of like the pebble.