The richness of a puzzle game comes from its capacity to be exceptionally diverse with a priori simple mechanisms. Baba Is You brilliantly meets this challenge, never betraying its minimalism. Through a few syntactic operators and a more or less strong dose of tile-pushing, the title develops strong concepts, requiring a certain abstraction (stacking of elements, synchronous interactions of properties, surjections of nouns on properties). But these difficulties are eased by the fact that everything is there for a reason, which very rarely leaves you in complete darkness, although the last levels can be particularly difficult, when meta mechanics are introduced. The reward is always worth the price, and it's a game that can be consumed well over short sequences... which get longer very easily.