The online game "Impossible Quiz" is available to play through sites such as AddictiongGames.com, AGame.com, NotDoppler.com and Impossible-Quiz.org, as of 2015. The game challenges players to use critical thinking skills in order to answer a series of seemingly impossible questions.
To play "Impossible Quiz" use the mouse to click on different areas of the screen, usually one of four possible answers to each question. The majority of the questions focus on the players understanding of each question's presentation rather than actual knowledge. For example, one level asks the player to answer the question backwards, with all the words written backwards. As such, the player needs to choose the answer that is also in a backwards form.