A Phase II Randomized Controlled Trial to Determine the Efficacy of an auGmented reAlity gaMe in pediatrIc caNcer Patients Who Are Opioid Tolerant Users Undergoing Surgery to Reduce Post-operative Opioid Use

Primary Objective: To assess the efficacy of SpellBound's AR-enabled scavenger hunt to reduce the rate of additional inpatient opioid use in pediatric cancer patients who are chronic/tolerant opioid users undergoing surgery compared to a control non-AR game in a randomized controlled trial. Secondary Objectives: To assess the impact of AR versus non-AR control technology in pediatric oncology patients, including: * Inpatient opioid use * Average daily inpatient pain score * Number of opioid requests during hospital stay * Inpatient PedsQL (quality of life) questionnaire score * Ambulation/"out of bed" movement * Number days to discharge-ready status * Patient experience assessed by satisfaction scores on questionnaire designed by MD Anderson Cancer Center Child Life team * Outpatient opioid use reported at 30, 60, 90 days. * Outpatient pain scores reported at 30, 60, 90 days * Outpatient PedsQL scores reported at 30, 60, and 90 days * Potential adverse events related to the use of AR (i.e., falls).