The secret word in this episode is ONE, which is said and screamed at nine times.
During Pee-wee's dream, Miss Yvonne is seen lying on the floor with a ten-thousand-pound barbell across her chest, as if she dropped it while weightlifting. The bar of the barbell is bent in two places, just fitting over Miss Yvonne's breasts.
When Pterri notices Pee-wee has fallen asleep, he wishes out loud that he could see what Pee-wee is dreaming about. When Jambi appears ("Wish? Did somebody say wish?"), Pterri addresses him as "Zombie". This was clearly intentional (both characters are voiced by the same actor, John Paragon), though it was not mentioned nor corrected in their conversation.
While performing his penny trick, Pee-wee hums the tune of the Sabre Dance composed by Aran Khachatorian.
In Pee Wee's dream he is seen flying across the New York skyline which included the Twin Towers. This episode aired almost 12 years before the terrorist attacks on September 11, 2001.