Bolivia by Night surprised me on multiple levels, throughout the game. It begins with you as a reporter in a Bolivian city who has to interview different people, getting in some comic situations. The game has a lot of real photos included, as well as quotes about Bolivia.
Then, the game changes fundamentally, again and again. I don't think I can put into words how entertaining it was and how deeply different from the opening sequence.
The puzzles are very simple. Sometimes, though, it's just a guess-the-author's brain game. Many solutions rely on applying objects to to things that share common traits (for instance, if it were a fighting game, you would use a blue spear against a blue-eyed warrior). The hints section is well-done, and the game almost delights in guiding you through what to do.
Somehow, this game enchanted me.