It parodies the video game, The Oregon Trail, in which players act as wagon leaders guiding his or her groups from Independence, Missouri, to Oregon's Willamette Valley.
To make the musical have more features as a game, the StarKid group adds a few interesting interactive designs, such as letting the audience name the characters and choose which character will die at the end.
It really deepens my desire to watch a live StarKid show!
Spoiler Alert!