My Friend Barney Rugrats : Season 2 Episode 39

Chuckie introduces his imaginary friend, Barney (who looks just like Chuckie, according to Chuckie), to the other Rugrats, but becomes concerned when Barney "oversteps his authority". Meanwhile, Didi runs with Betty in the "Save The Grunion" 10K marathon, paying a little "price" at its end.