Research shows that secondary vocational education students (Dutch:MBO-leerlingen) are gaining more and more weight, but the number of intervention programs on weight gain among this population is limited. It is hard to reach the target group because health awareness requires long-term commitment. Having problems with making and meeting plans in the long term, secondary vocational education students need a constant motivation to regulate their own Dietary Intake (DI) and Physical Activity (PA). The objective of this graduation assignment was to develop a smartphone game, which encourages secondary vocational education students to pay more attention to their own weight, with a focus on DI and PA. This report presents the analysis, iterations, and decisions made leading to the final concept of the app Carrot Runner.