This is a fun premise. I think it could use a quick restart though and I don't feel like the sides of the viewport should instantly kill you. Screen wrapping would create some interesting situations. Overall, nicely polished.
Hey, thanks for playing! Funny comment on screen wrapping, as we couldn't decide between having it or death upon wall hit. The retry / quick restart are already fixed and added in next release once the page is free from ratings lock.
Thanks again, and greatly appreciate the feedback.