Charming in many ways, but it feels like it commits many cardinal sins of the adventure game genre. If you pursue only the most basic ending, most of the puzzles seem fairly straightforward, but there aren't too many, so the game will end fairly quickly. This ending is somewhat unsatisfying though, and leaves critical questions unanswered. The "true ending" path (which isn't that much different in terms of story) requires you to investigate several key points throughout the game, sometimes in a particular order, without much guidance, or feedback letting you know if you've done anything correctly, or if you've missed something and locked yourself out of this ending. After one playthrough, I felt like a guide was required for the subsequent playthrough, to at least point me towards any "missables". Still, it's a neat exhibition of the various features of the DS, and a cool format for an adventure game like this.