Almost a therapeutic atmosphere with the early-2000's-sci-fi-game-like music (yes, that's an expression :P), and the nice purple color-scheme that's not too intrusive. The low-gravity jumping is really nice and I personally found it most enjoyable to book it past all of the enemies and try to beat it as fast as possible. Got a best time of 1 min and 15 sec.
Nicely done! :)