What is that computer game where you're a mouse collecting cheese while avoiding cats?

It's an old game I used to play it on my grandfathers computer years ago. It's a green playing screen and they put you (the mouse) and cheese and cats and blocks for you to push around to make a safe area so the cats can't get in. I also think you can kill the cats when you push blocks on them. Does anyone know what this game is?|||Tom %26amp; Jerry.... :D