Sesame Street 123 is an educational video game developed by Rare and published by Hi Tech Expressions for the Nintendo Entertainment System (NES). The game is based on the popular children's television series Sesame Street.In Sesame Street 123, players engage in a variety of activities designed to teach basic math concepts such as counting, addition, and subtraction. The game features beloved Sesame Street characters such as Big Bird, Cookie Monster, and Oscar the Grouch.With its interactive learning activities and familiar characters, Sesame Street 123 provides an entertaining and educational experience for young players.