And you play it all with just one button.
One Button Arthur sends you on a quest through a string of random dungeons, caves, castles and wastelands. Each screen has some sort of trap to negotiate, puzzle to figure out or enemies to smite. And you do it all with just one button.
The fun is in working out what that one button press is going to do each time; on one level it might make Arthur jump, while on the next it'll make him swing his sword or stop moving or start moving or change direction or you'll have to press it rapidly to make him run faster and faster.
And that music. Holy shit.
One Button Arthur [Armor Games]