This is really nice. It's INVENTIVE. Also, appealingly awkward - trying to coordinate the rgb keys with my actions was a little tricky. =) The animations are top notch, and I really dug the colour transformation fizzle on the main character. Really nice work - could do with seeing some more of this. I'm sure you could find lots of interesting mechanics by exploiting colours, colour mixing, chromatic aberration...
By the way, is there a secret I'm not good enough to get to left of the starting point? =D