This holidays I saw this video . It’s seem awesome to me, so I decide to make something like that. So, I did it! I made an space invader clone using HTML 5 canvas + vanilla JS. No libraries at all.
The result can be seen here: https://www.graph-ic.org/experiments/invaders/index.html
The code is public and available here: https://gitlab.graph-ic.org/manolopm/invaders/