I thought the controls on this game were really good (for moving and jumping). In fact, I played this game a lot longer than many of the others, since the movement was fluid and fun. And very smooth. I also liked the idea of the flipping gravity. And I really liked the intro level to show you about jumping and double jumping. Any time a game can do that, without the user having to read a lot of text, that's fantastic. The intro wording scrolled by a little too quickly, since with the interesting title, I was reading slowly and really wanted to understand the backstory, so I missed 1/2 of it. But overall, the fluid movement made this fun. I agree with the others about not knowing exactly what will kill you at first. But you did a nice job with little touches like the arrows of the falling items to show which way they will fall. One other note: In the first couple of levels: I found it was much much easier when the gravity switched. So I found myself waiting and being able to solve each level only from the second gravity position, since the movement was much easier and unblocked. But with more time, you could really perfect each level, so that you have to use specific strategy on both areas. Anyway, this was the most fun of the games I've rated, really nice job!