This felt like a fantastic next-evolution of Baba is You. Level design was top notch, and it was clear the designers had a strong grasp of what their design might do. There were a surprising number of levels, and the difficulty curve was great. It fully embraced the idea of "out of control" while taking it somewhere new.
Also awesome: the undo button, and the fact that the last level completely threw out all the assumptions of the previous levels and took the game in a new direction. Really great stuff.