I played through this game twice, once for story and once for completion.
It is not actually a HOG in the traditional sense; it is an extremely casual point-and-click adventure that happens to mix in a handful of HOG-like elements.
Gameplay consists of:
1. Object-based puzzles (find an object, then use it where it's needed).
2. Mini-games that utilize rotating discs, matching, pattern recognition, mazes, and other simple challenges.
3. FROG puzzles (fractured object I-spy puzzles).
4. Recipes (combine several components together to create a new item).
5. A global I-spy puzzle that requires you to spot 111 "Snoop-see" creatures across both the main game and bonus mission in order to unlock pages of a book.
This game did several things right. The artwork is beautiful (almost Jim Henson-esque), the mini-games are fresh and creative, the adventure puzzles are intuitive, the music and voice-acting are decent, and the FROG puzzles are challenging but not frustrating.
It is a good gateway game for those new to the genre. They do a great job of providing constructive feedback to players, and they include both a hint system and a complete walkthrough (including Snoop-see locations) for anyone who is struggling. Additionally, on easier difficulties, the game map shows points of interest, and allows you to teleport to any screen. As an extra little bone to players, the pages unlocked by the Snoop-see hunt provide visual clues to the game's puzzle solutions.
I would have liked them to have a stronger story hook, and to use the dialogue more effectively (the start of the game is especially slogged down with cutscenes). I also would have liked a bit more variety in the object-based puzzles; you can only collect so many keys, handles, triangles, and seals before it starts to feel repetitious.
Another thing that bugged me was the need for precision when using objects. If you don't interact with the right hot spot, the puzzle will not recognize the required solution.
One special note: players who are colour-blind will have difficulty with the mini-games, as many of them require colour recognition to solve. This is a major concern because the mini-games are a rather large component of the gameplay.
Overall, I would give this game a 7/10. It was more child-like than I expected, and there weren't really any true HOG puzzles, but the art was pretty and the mini-games were fun. It is a decent casual game to waste a few hours with, although I wish I had earned a few steam playing cards or achievements for playing.