I like cywall by Kenta Cho. The one-button approach is refreshing to explore as a gamedev who tries to cram everything in.

https://abagames.github.io/crisp-game-lib-games/?cywall

He wrote a lot of words on small game development:

https://abagames.github.io/joys-of-small-game-development-en...

(PS I liked cywall so much, I'm made a clone: https://opyate.itch.io/paddles (audio not working yet, sorry))

And hopefully this doesn't suffer from HN hug 'o death, but here's some more of his games, implemented with all sorts (HaXe, Flash, JS, etc):

http://www.asahi-net.or.jp/~cs8k-cyu/