I always find it interesting when a game developer looks inside their own heart to fuel a creation.
Apart from technical and mechanical excellence (this could easily be a combat sequence in Undertale for example), the game also manages to engage on an emotional level. While it's open to various interpretations, to me it conveyed a sense of desperation, a feeling that every time you figure something out, the rulebook changes, things become harder, and ultimately all your efforts are in vain.
Really beautiful, please keep creating these!