I think no words can describe how beautiful this game is. Don't ask, just buy it, now.

EDIT: now that I can do actual reviews, I can say more about this game.
This is a masterpiece, all elements from this game blend perfectly: story, graphics, soundtrack, gameplay, game design; it doesn't feel at all like a sum of its parts.
I would prefer to not spoil to you anything of this game, but let's say it's a 2D puzzle-platform in which you must use time-control to solve puzzles.

I suggest you trying the demo if you don't trust my words enough, but believe me, I beaten more than 500 games in my entire life, and this easily fits in my top 5.