Here's the MadLib Archer wrote, called "Super Mario Bros.", with his notations about the parts of speech, and the blanks filled in with the class's answers.
Attention All Platypuses (Plural Noun)! A New York City (Noun) called Super Mario Bros. is being puked (Past Tense Verb)! Princess Meghan (Female Person In Room) is being mowed (Past Tense Verb) by Gray (Male Person In Room)! Mario must rescue her. Walk (Verb) with the Z (Letter) Button. Scream (Verb) with the W (Letter) Button. Finally, fall (Verb) with the C (Letter) Button! Mario must swim (Verb) Goombas and Koopas. If he doesn't, he'll sharpen (Verb) a Lylla (Noun) ... And avoid having Mario shimmy (Verb) all his scorpions (Plural Noun) or it's Game Over for you! Also, try to juggle (Verb) a top score! Good Luck!
P.S. Dance (Verb) your best.