Use your mouse to move the cat all the way through the tunnel, without touching the walls.
If you dont go back to the start when touching a wall, please dont be a cheater and go all the way to the fish. please just act like the walls are poisonous bc i got really stressed out that u dont restart after touching a wall so if u want look inside the project and see what u can do, if u did something and it worked pls say so in the comments it would make me happy. BTW i get my ideas from a book called CODING PROJECTS IN SCRATCH.