Papo & Yo is a 3D puzzle platformer adventure, in which you are a boy running after a girl, avoiding a monster while using it to solve puzzles, and playing with your robot toy. You use platforming to reach various stuff in the environment to change the the world around you to progress. Well, on one plane. On another plane, and this is made clear right before the game proper starts, this is a game about overcoming a drunk abusive father. Papo & Yo's story isn't the best, but it has a reasonably well put together theme and a very strong subject matter. There were a few story elements that felt somewhat jarring, taking you out of the immersion. For example, the tone of the girl changes dramatically and unexpectedly at times.
It's puzzles are on the easy side, all difficulty in this game comes from either finding the things you are to interact with or with your 3D platforming skills, sometimes together with a timed element in the puzzle. Some times, it's hard to judge the distance to items and when using the robot overshoot. The platforming control does feel well implemented and I did not encounter any situations where I had managed to block progress by going somewhere I was not supposed to and with no recovery options.
Graphically, it's a nice looking game with a very consistent style to it. Textures and effects aren't the very best, but on the other hand, that's not really to be expected from a game like this. It does some world building through the environment, but over all, it is a very linear world that does not present mane chances for exploration outside of your immediate puzzle surroundings.
Game world isn't the largest, and the game doesn't take more than maybe 4-6 hours to complete if played with no prior knowledge, but for what it provides for the price, it is a solid and well designed game.