As industry embraces the agile methodology for application development, universities are shifting their curricula to teach agile principles along with traditional waterfall concepts. This paper describes a simulation game offered to students in a first-year computing concepts course to introduce both models of application development. Students work in development teams to design, build, and test paper airplanes following both waterfall and agile principles to experience the roles, processes, and challenges of each. Participants track their team's progress throughout the activity, so they can draw conclusions about the benefits and challenges of each approach. Survey results indicate that students learned the various roles and approaches of both methods through this experience.