If this is for the general public then it's already pretty good! You could add some more facts to impress people, like the total copies of every version of Tetris ever sold?
Also if you phrase things in a particular way it helps to add context. Such as (making these numbers up) "Only 5 people have ever finished NES Tetris" sounds good, but it isn't as easy to appreciate as "The NES Tetris sold 5.58m copies, but only 5 people have finished it to this day". This sort of stuff makes it easier to impress someone unfamiliar with the competitive aspects of Tetris.
Disclaimer: Don't use my exact examples, they suck!