Varies by part a lot, minuswaves are pretty boring but most gameplay is pretty cool, with a couple being proper standouts (The one with the orb spam and the color restrictions on the orbs specifically is god tier). I want to mention that usually obscuring a background design is a bad thing but in this it really adds to the mysterious, almost incomprehensible feeling this level gives off. You can't really make out all the details, very fuzzy, and I can say the same with a lot of structures in the 2nd part where it's difficult to tell what is and isn't supposed to be a face.