Compare this to a game like Beat Saber, where you can play any level, at any difficulty, in any order, and the computer just keeps track of your score. 99% of

Compare this to a game like Beat Saber, where you can play any level, at any difficulty, in any order, and the computer just keeps track of your score. 99% of the game state is in your brain, so the only way to progress is by learning how to interpret the patterns and coordinate your body. It's also anti-addictive, because playing for more than a few hours is physically exhausting.