I like this! It's challenging, but in a reasonable, enjoyable way. The story's not too complicated, from what I'd explored, yet it's recognizable enough to follow while not being so pervasive that it ruins the fun of platforming. There could be a bit more content added, sure, but for a free flash game, it's not terrible!
I think I ran into a bit of a problem, though. I was in the moving wall-jump section and got caught behind one of the obstacles. I'm assuming the character was crushed and died; I was taken back to the reddish area with the zig-zag running across it and a staircase on the left side. The character was nowhere to be seen. The music also went silent. I tried jumping and moving around, but nothing seemed to work itself out. Just thought I'd mention that!