Not many games look and feel like Papo & Yo. If you need to categorize it, you can call the upcoming PS3 exclusive a magical realism puzzle platformer. It's a game where you put cardboard boxes on your head to get hints and move houses to get across gaps. But, from what I played over the last few months, genre categorization really don't capture how Papo & Yo comes across as a sweetly poignant metaphor for an impoverished, abuse-filled childhood.
I've written about Papo & Yo before. It draws on the boyhood experiences of Vander Caballero, putting players in the role of a young boy who's chasing his sister through a shantytown wonderland. A key part of the game comes from teaming up with Monster, the giant pink creature goes on destructive rampages when he eats the frogs found throughout the game. Caballero says openly that Monster is an analogue for his alcoholic father and that making the game helps purge and repurpose the bad parts of his early life.