Nothing says "fun" like rules, structure, and restrictions! Well, that's what I believe when it comes to puzzle games, anyways. Games like Portal and The Talos Principle, which provide you with a specific set of tools and take care to establish the basics of how they can be utilized before turning you loose with them, successfully craft elaborate puzzles that leave you wondering *how* to piece everything together instead of *what* you can even try.
Crayons Physics Deluxe seems to represent a different school of thought. Each puzzle consists of figuring out how to roll along a little red ball until it collides with a shining star, and from the very beginning, you can use your Crayon Cursor (note: that's not the official term, I just like it) to draw all sorts of things and have them immediately appear on screen. For the first handful of levels, I was able to rush through them by simply drawing lines to create bridges and slopes for that little red ball to roll across. Afterwards, I quickly found myself feeling lost.
Individual "islands" (collections of puzzles) will briefly introduce new concepts, like pivot points that allow you to draw objects that swing around them, and then leave it up to you as to how you will proceed. Because you are capable of drawing just about anything, I rarely bothered to take in the surroundings and plan out a solution (like I would in Portal). Instead, I brute forced my way through multiple levels, just drawing things almost at random until something worked. The satisfying moment where everything "clicks" at the end of a devious challenge in Portal just isn't there for me in something like this.
I will say that the overall vibe that this game establishes is delightful. The simple crayon-on-paper look and soothing, tranquil tunes work to remove any sense of tension during play. Come over and relax in this quaint little sandbox! Unless you're boring, like me, and you're looking for a more guided experience.