Pode is a fun and relaxing puzzle game that starts out simple and becomes more complex as the game progresses and you gain new abilities.  While the game is meant for co-op play, it plays just as well single-player, though you will have to constantly swap between Glo and Bulder.  Having a second player can also help with solving puzzles as you have a second person helping you out, but alone or with a friend, with its enjoyable art style and relaxing atmosphere, Pode is a puzzle game worth checking out.