Abstract: A flashlight activity game is disclosed that is played with a common or custom flashlight. The flashlight activity game allows a first player to hide a detector that a second player must find with a flashlight. The flashlight may also have a focusable or diffuser lens to allow younger children to have a broader beam of light and older children to have a narrower beam to equalize the challenge for all players. The detector emits a flashing light and/or sounds when the detector is located with light from a flashlight. Multiple people can also play where the detector is placed by one person and two or more people compete to find the detector first. The detector is self-powered to allow for hours of play without charging or replacement of batteries.