The first game I made in recent history was Space Wars — a 2D HTML5 game using DOM and Javascript.
Controls are arrows to rotate and thrust forward. D – Shoot, E – Lock or Shoot Missile 1/2 Switch weapons if you get a special. Pauses.
I did not use Canvas. It is basically CSS being animated on the screen. Pretty cool what you can do with it.
There are a bunch of levels but its sort of unfinished. The boss graphic was never updated from previous versions so he looks weird.