Sherlock Hemlock guides users as they find the clues to solve puzzles and mysteries. Concepts emphasized are safety, healthy eating and recycling, skills developed include critical thinking and problem solving. There are more than 20 activity combinations and multiple skill levels. The game's story features the whole Sesame Street gang planning a trip, but The Amazing Mumford's trick to get them there makes all the items they plan to bring scatter all over the street. It's up to Sherlock and Watson to retrieve the items. This game was included in the 2-disc Sesame Street Learning Series: Elmo's Preschool Deluxe CD-ROM set along with Elmo's Preschool.