How to give yourself a good brain scrub
So having the different flavors in Tetris Worlds was enjoyable. I preferred fusion and cascade. Tetris really isn't that challenging, but it does make you think in a specific way that I don't get to enjoy in my job.
The downside to the game is the soundtrack. It's fine if you like electronica, but I don't. But that can be worked around.
Playing Tetris was insidious. I found myself playing far longer in a stretch than I intended, just because I wasn't dying. And when a game ended, I was upset with myself since the error I made seemed so obvious. So I had to start again just to prove myself right. Which didn't really happen.