Take the cat as being me. I get kind of lonely and sad when no one is with me. So, when your mouse pointer is near the cat, it calms me down. But when you leave, I go crazy. And yes, just to make you sure you are seeing right, when your mouse leaves the cat, I made costumes for it to look like the cat is crying. And just one more thing, it is better if you put your screen in full screen.
Everything by me.