A brilliant expansion that aims to surprise and delight fans of the original.  While there were a few sticking points, especially aiming to get all of the berries, forward progress always felt reachable enough to drive me to keep playing.  On the other hand, there were a few sections that I was able to get through in one go, and those always felt incredible.  In all, a short and sweet game that I would recommend to all fans of the original or of the precision platformer genre.