Pretty cool game, I like it.
I had the same thing as HappyTimeGuy, didn't load the first time but worked when I started it again. Works great on Linux.
It's annoying that the mouse is still restricted to the screen while paused, would be good if it could be turned off specifically then but not while in game
Music wasn't playing until I paused
I don't play this sort of thing much, I got to 179592 points. I completely forgot that Shift was dodge and not Space so I made a risky move that relied on the ability that allows you to dodge through enemies without actually using it and lost 80% of my health as a result.