Charlie Charlie Challenge is a free word game developed by RHGames for Android devices. The game is based on the popular internet urban legend of summoning a Mexican demon named Charlie using pencils and a piece of paper. In the game, players must ask Charlie yes or no questions and watch as the pencils move to reveal his answers.

The game features simple graphics and gameplay, with a spooky soundtrack that adds to the overall eerie atmosphere. Players can choose between different game modes, including single-player and multiplayer, and can share their scores on social media. While the game can be entertaining for a short period, it lacks depth and replay value, and the repetitive gameplay can quickly become monotonous.