We move the mouse, if we want the mouse to move forward, we have to match the mouse pointer and the mouse will follow it, and don't hit the cat because if the cat hits the mouse, we lose, we can do it again or finish.
I got the idea from the book, because in that book there are so many programs that I like, and I chose this program because it's really fun. This's my first time I program in Scratch. Hope you like it!