Nice ideas, but laggy/buggy
The new gameplay elements like boxes that are also shift-able are a great addition to the shift experience.
Unfortunately the game begins lagging more and more after a while, which makes it annoying to play and caused me to quit mid-game. There were also other bugs (possibly related to the lagginess), namely the game not always "registering" when the character hits some gravity changing button or such.
Without the lag/bugs I would've given probably about 8 or 9 points since the gameplay is really nice... only the lagginess completely spoiled the fun for me :(