You can double the number of rewards you get for successfully exploring a location or solving a puzzle by watching an ad in the win window. Press the "Double the reward" button and watch the ad. Afterward, the number of rewards—coins, experience, tools, fixers, items for summoning and dispelling anomalies, Bloom Festival tickets, reagents, weapons for banishing monsters (except event creatures), and access passes for locations (except for main event locations)—will be doubled.