Betty Boop and Koko the Clown in Ha! Ha! Ha!

Betty Boop and Koko the Clown in Ha! Ha! Ha! (1934)

At the Fleischer Studios, Betty Boop gets a visit from Koko the Clown. And Koko discovers the joy of chocolate! And then, the pain of a toothache!

Kindly Betty tries to help by drawing a dental office, and helping the (very reluctant) Koko into the dental chair! But when she has trouble pulling his tooth, she has the mistake of administering laughing gas! And it escapes, affecting Koko, Betty, and pretty soon the entire town!