I have! I picked up a copy a couple of years ago. It took me a little while to realize, it's not about clearing the screen, but about getting a high score. It's very clever, and a little addicting!

Yes! Got it as a present so it wasn't on my radar but it was a pretty good puzzle game. I seem to recall playing this way more than I played Tetris.

Here is an alternative Piped link(s):

Quarth

Piped is a privacy-respecting open-source alternative frontend to YouTube.

I'm open-source; check me out at GitHub.