OCO is a nice, simple-yet-complex, pick-up-and-play puzzler, whose mechanics will be learned in mere milliseconds, and yet you'll need to actually activate that grey jelly on your head in order to perfect each stage. Trying to get the best score is one half of the fun here, the other one being the ability to create, share, and play community made content. If there's a flaw here, is that it can get a bit repetitive after a while. Moreover, the PC feels like the worst possible platform to play handheld-friendly titles such as this.