Nice little shooter. Physics sometimes seem a bit off, I could shoot through wall sometimes. Also, the monsters sometimes seem to cross walls.
Dashing seem so make the whole wall passable, which is a nice gimmick. With bullets and enemies passing through too. I also like the kind-of-CRT-monitor effect.
Please add a way to restart, I died faaaairly often - and refreshing the page all the time is a bit annoying.
I think the wall thing is pretty unique!