I'd ask if you remembered the music or the sfx, but of course you do. We all do.
Tetris is like the blocks you got to play with in kindergarten but with a better soundtrack and more 8-bit sound effects. I recall it from my childhood with more ease than I do any instruction I received about finger-painting about sharing or making wind-chimes out of old silverware, for sure.*
But this perspective altering version of Tetris will have you asking if the floor is the ceiling, if left is south, and if forwards is back in time. It'll have you seeing things all kinds of caddywompus, which is just so much fun to say. Try the night mode too.
*Though the best kindergarten activity was making ice cream out of snow.