Dit is de Engelstalige versie gebaseerd op de Engelse serie. Er is helaas geen Nederlandse versie uitgebracht.
Sesame Street: Once Upon a Monster is an uplifting and funny, family adventure game playable on Kinect for Xbox 360. Players join favorite Sesame Street characters Elmo, Cookie Monster, Oscar, Grover and all new characters as they discover a long lost children’s book titled Once Upon a Monster.
As they read, they join the action to become part of a living storybook adventure, helping new monster friends with their problems by exploring the book chapter by chapter, page by page. It features active co-op gameplay that is specially designed for sibling and/or parent-child co-play; and teaches social, emotional, and other important life lessons through its colorful and whimsical gameplay.