The Slap-Hoppy Mouse

Sylvester takes his son Junior to an old, broken-down, mouse-infested mansion near some railroad tracks to prove his mouse-catching ability. Baby kangaroo Hippety Hopper falls out of a passing circus train and turns up in the house. "He's only a mouse, Father, and cats aren't afraid of mice," Junior helpfully points out. Sylvester and Junior, as usual, mistake him for a giant mouse, and Sylvester is obliged to fight the playful Hippety.

Sylvester, Sylvester, Jr., Hippety Hopper, Butler, Mouse

The first of only two Sylvester cartoons animated by Russ Dyson, and the first one animated by George Grandpré.