Garfield and Friends (1988)

S02E24 Yojumbo

After Jon and Liz's date is disrupted by a thug, Jon decides to enroll in martial arts classes to transform into an "urban samurai" and boost his self-esteem. Meanwhile, Garfield, aware that his clumsy owner is likely to find himself in more trouble, envisions himself as "Yojumbo," a fierce samurai warrior, ready to defend him.