Great little platformer - the fact that you made it in only 6 hours makes it even more impressive! I liked that last level a lot - trying to keep one cube from being sent into the red while simultaneously moving the other into position was a little challenging! My only suggestion is that the game could do with a little more "juice" - to make it more satisfying (and clear) when the two cubes finally meet, for example - but that's ultimately a very minor complaint!