I've just released v0.1 of a falling block video game: https://github.com/default-kramer/fission-flare
It draws a lot of inspiration from Dr Mario but I don't like to advertise that since my game has plenty of unique ideas. And although the patent on Dr Mario has expired, I'm not a lawyer and I don't want to invite trouble.
The game is 100% Racket, most of it Typed. The graphics are all done using pict. Perhaps I'll start a blog and write up some of the more
interesting things I learned, but not today.
Warning - it can be pretty addicting! Well over 90% of my "development" time was just me playing the game.