Power-Up Bands are silicone wristbands that enhance the interactive experience at Super Nintendo World in Universal Studios Hollywood and Universal Studios Japan. They allow guests to collect virtual items, participate in key challenges, and more. Yes, you can "share" a Power-Up Band at Super Nintendo World, meaning one band can be used by multiple people by simply linking it to different accounts on the Universal Studios app, allowing everyone to track their individual scores and progress within the interactive activities throughout the land; however, keep in mind that only one person can use the band at a time to interact with the elements in the park.