Took me 3 tries, 28 seconds, to beat it and it was only my first time playing. It was smooth, easy to control and the music, while repetitive, which is probably to be expected from a game that was made within 24 hours, was pretty soothing. My only gripe is that I beat it too quickly, I had prepared myself to spend more time, chucking key after key into the void until finding the correct one, but 'lo and behold I found it within half-a-minute :P
To everyone who are having performance issues; maybe your computer sucks?