Re-Mission is a video game designed to improve cancer treatment adherence in children and teenagers. It contains 20 levels across 7 cancer types with objectives like killing cancer cells and managing side effects. Research shows Re-Mission improves treatment adherence, with patients having 16% more antibiotic doses and 20% higher blood chemo levels, as well as greater cancer knowledge and self-efficacy. Studies aim to identify the mechanisms behind Re-Mission's effectiveness, examining the roles of knowledge, emotion, motivation and how interactivity activates reward centers in the brain linked to learning and behavior change. Results suggest game-based interventions can powerfully influence health behaviors through psychological and neural pathways.