I don't have an extensive review of this game but it's certainly creative. It's something of a simplified RPG system, which in combination with the semi-cartoonish subject matter makes it ideal for younger players. My biggest criticism would be less with the rules themselves and more with the layout of the book; stuff just kind of is wherever it is, not being really organized at all, and that can make it difficult to look up specific rules at any given time, or require a lot of scrolling.
Don't get me wrong here. The document is short and the rules are simple, so this isn't a huge deal, but it merits mentioning. The unusual subject matter and limitless potential of this system definitely make it one heck of a sandbox to play in.