In short, TNNS can be described as Super Pong Bros. 3, and can only be played on a touch-screen.
TNNS is a decision-engine, but not for you. Your decision is a question with one answer that is asked every half-second.
Is the ball coming at you? If "yes," put your paddle on it.
If "no," then the question will be asked again in 0.5 seconds.
If you can answer that question, The Game Will Continue To Exist. The objective is to continue. Right? Right! Right. People with salaries are looking at spreadsheets right now (probably in California!), trying to figure out how game-ify things that people would rather not be doing. The theory goes, those some people might be alright doing those undesirable things if their actions were being quantified with numbers. They're ostensibly trying to make "continuation" more tangible -- to make it a finer grade of sand.
Being is boring. The infinite number of decimal points between integers 1 and 2 is not. Right? Right?!