Hey, just finished playing this, excellent game you've made! Got through with 232:12 and 204 deaths. Also got the secret, albeit by pure accident, but it was worth it.
Tight controls with multiple options for those like me who prefer them, checkpoints that are both fair and challenge-preserving, great art and sound, just long enough to make the most of what it has to offer without overdoing it, and a difficulty curve that gets nice and steep by the end without suddenly jerking up or down at any point. This game's got all the good stuff with none of the filler or crappy design that a lot of other games of this type suffer from.
Hell, I actually went through the annoyance of making an account on here and posting all this blather, just so I could praise this game, and I normally wouldn't bother doing that even for a free pizza, so that should be an indicator of how much I liked it.
All-in-all, this is some great stuff, really scratches that "Super Meat Boy/IWBTG" itch without going too crazy on difficulty. If you haven't given this a shot yet, do it, it's worth your time.