"You know that, of course... right?" Are you sure you can answer instantly? The world's longest river — which one is it? Saturn's rings — what do they look like? That ancient ruin — what was it built for? If you nailed those, you might be the real Common Sense Champion. This game is a 4-image multiple-choice quiz. Read the question and pick the correct image from four. Nature & animals, geography & landmarks, astronomy & space, science, history, sports, food, art & culture — 8 categories and 50 questions push your "common sense" from every angle. How to play is simple. ・Read the question and pick the correct image from 4 ・Open the hint if you're stuck ・Read the detailed explanation to see why it's the answer "I've seen it, but I can't recall the name." "Oh, that makes sense!" Clear up the things you thought you knew — and discover the ones you didn't. Right or wrong, every question adds one piece of knowledge. The nationwide common sense battle climbs to its summit, played in 4-image multiple choice. So — ready to prove you're the real Common Sense Champion? The game supports both button controls and touch controls, allowing you to play in TV mode, handheld mode, or tabletop mode.