Really enjoyed it! Nice job. I suggest implementing some sort of internal frame cap. High FPS makes the controls randomly unresponsive.

For now, players can cap the framerate at 60 with an external program like nvidia control panel.

This is fantastic! Played it with a controller, and after a minute or so the controls clicked and everything felt like second nature. Very addictive. Looking forward to purchasing a full release.

Music, gameplay, and graphics are all super tight.  Am I missing the exit button, or is it alt+f4 only at the moment? No way to exit with a controller?

Looks great! Thanks for sharing. Going to print a large poster of it.

Here you go: 

Why is there no singleplayer? Seems like a bizarre omission for such a cool looking game...