the smartest thing about this game is how it varies the balance of puzzling and platforming. some levels make you think but have simple platforming, some levels have simple puzzles and more demanding platforming, some are classic donkey kong style action levels, and everything inbetween. it makes it so smooth to go through a sequence of levels, and on top of that they are constantly introducing new pieces to build levels with, and on top of that the platforming feels incredible, with a 2d mario 64 moveset 2 years before mario 64. the way that puzzles have multiple solutions also makes it fun to replay them. it reminds me a lot of the better breath of the wild shrines, right down to being able to do clever platforming that feels like breaking the level, even though it's all part of the design.