The rat has gray fur, pink paws and a black nose and eyes.
It doesn't like intruders especially when they steal his food.
Scooby-Doo and Scrappy-Doo
The shrunkend trio entered a mousehole to hide from Pistons McGee and find a chunk of cheese, but the rat doesn't take them lightly so they attempted to escape from within the cheese. When the rat lunged for them, the cheese broke apart and they escaped leaving the rat dazed.