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Developed through an iterative process with rehabilitation experts and game designers, RollAbility utilizes the Wheelchair Skills Training Program [Kirby et al. '23] and integrates key insights from Aufheimer's [CHI '23] motivation studies in physical therapy to ensure both therapeutic and engaging gameplay. Evaluated through exploratory sessions with children, therapists, and clinical experts, results show that RollAbility effectively merges clinical protocols with an engaging game format. However, balancing player autonomy and therapist guidance remains a critical consideration. 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