If you would have been watching me play...
You'd probabaly be thinking something along the lines of 'What a fucking idiot! Come on, It's not that hard.' But man those last three levels killed me so much. More so 18 and 19 than 20, but it killed me alot too. Okay, now for the review.
Gameplay was alot like taking the classic game Snake and putting him in a maze. If your good at snake, you'll do alright in this game.
Graphics were simple, but not choppy. I like that.
Mechanics were similar to your game lil arthur, except with a keyboard and no ability to stop and rest or cheat. And if you can cheat, then I'm not 1337 enough to know how.
Music: If you took ten minutes to beat the game like I did (603 I assume is the amount of seconds, not 6 minutes 3 seconds), a single song got repetative and annoying. It was a good choice, you should have just added more songs than that one.
Overall: I spent ten minutes, died 200+ times, but I stuck around to finish; it was challenging. If it were easy I'd have gotten bored. So good job with making a challenging maze game. It would have been nice if you could have incorporated more levels though.