Wired: "Galaxy 2 is a veritable creativity bomb, a megaton explosion of new ideas. With the original 2007 game, the Mario team had its hands full polishing the game’s central play mechanics and coming up with levels that worked well with the radical design change — instead of exploring the standard 3-D action game worlds, Mario leapt and flew across a universe of tiny planetoids. The levels played and riffed on the concept of shifting gravity — arrays of spheroids would give way to topsy-turvy Escher-like constructions.
With the basic structure already in place, Super Mario Galaxy 2 gave this talented team a chance to let their imaginations run wild." 9/10