Schoolhouse Rock!: Grammar Rock is an educational game where the player explores the town of Conjunction Junction and plays several mini-games to learn about all the parts of speech (e.g. verbs, adjectives, nouns). The mini-games are ways that you can invite characters over for a party that Rocky is hosting. These include "The Adverb Machine", "Is the Noun Brown?", "What's in the Boxcar?", "The Action Zone", "The Busy Builders", and many more.