Although there are over 320,000 health and fitness apps available on major app stores, there is scant evidence that they actually promote a healthier lifestyle, assist users in exercising, or promote weight loss. This article presents a lesson plan using an Arduino for integrating computational thinking and game design with middle school students who may have little or limited prior experience with text based programming. Specifically, the authors believe that this lesson plan, which focuses on engaging students in both designing and playing an active laser-tag game (Figure 1, page 13), can help students learn basic programming principles, explore ideas related to circuits and sensors, develop teamwork and communication skills, participate in active physical play, and gain motivation in learning more programming in future game development and other applications.