Once the team realized they had complete freedom to make this sequel, they took risks on what is, to me, the greatest example of level design in gaming history. (monstervine.com)
It sets an example for other games with level design in them, and being an independently developed game further increases the extent to which this is true. (invisioncommunity.co.uk)
The variety of obstacles is reasonable, with level designs varying in complexity as you progress. (completegamereviews.com)