The game felt really complete; wth the art, music and overall feel all complimenting eachother well.
I do have to say that i started to find the fading obstacles a little frustrating after a while, perhaps it could have been interesting to link their disappearance to the player's speed (or some other factor) instead of them coming and going at regular intervals to allow the gameplay to flow slightly better.
But, that said, it's still a really enjoyable game, and the relaxing music really does help to relieve the rage-inducing deaths to invisible cacti! haha :)