Cool idea. I have some issues with the beat (looks like off-beat for me, or my browser isn't following the playback speed exactly, who knows), but I like the pixel look. Could be a little less course, though ;-)
I liked the synopsis where you actually see a "story". It is a bit difficult as my keyboard is not qwerty but once you change that it can plays. I try to follow the beat but couldn't move properly at some point. I still managed to get several points! :) Anyway good job for this entry all.
Nice game! But I encountered a very big bug! On Windows 10 (x64) with Chrome 66.0.3359.139 there is no sound! Because I have no other (self-installed) browsers on this system I played it with MS Edge. There it worked. I don't know the reason for this bug, other games with sound worked and I even tried fullscreen mode. Silence. Thanks god that Edge could handle it, didn't think I would ever use it ^^
Another idea: I like the idea of the intro but it's very long so it would be nice if there were an "skip" button. That annoyed me when I tried it multiple times.
https://ldjam.com/events/ludum-dare/41/hype-time