Lumines Remastered, played this game forever and ever and ever..
I got addicted to this "Tetris on steroids" game on the PSP back in 2005 and got it a year ago on my switch.
The first idea of video game designer Tetsuya Mizuguchi was to make a Tetris game with music, it became Lumines cause of legal reasons.
So it isn't denigrating for me to say "Tetris on steroids", it has the same addictiveness and feel as Tetris, but then bigger, bolder and more hysterical.
At first you need to figure out how the blocks fall; the block contains 4 smaller blocks and merge together with other blocks you already placed.
Every few minutes the scenery, the blocks, the speed of falling, the music and effects change. With all these changes a "simple" game turns into a diverse and challenging one.
Relaxing to play, easy to spend hours on end playing and easy to turn off and go on later.