What are hints, and what are they used for? June 18, 2023 10:57 Updated Hints are special tools that make it easier to investigate scenes. In some modes, there are special hints that are only available in that mode. For example, Night Vision in the Night mode. Related articles Hints in Hidden Objects games What modes do Hidden Object scenes have? What are crystals used for, and how do I get them? What are power-ups? How do I get Crystals?