Mojo! is a puzzle game at heart, and makes no qualms with letting people know this from the start. It's fast, levels are generally small, and there are a few very basic key gameplay elements that will keep you coming back for more.
The premise goes as such: all the mojo of the world has been trapped in square, icy blocks, rendering the universe in chaos. As the last bastion of hope for all life in this fantastical realm, your job is to roll your way from stage to stage, freeing as much mojo as you can along the way.
A well-rounded Single Player mode offers 8 worlds to play through, with about 10 levels per world. Aside from attaining your overall goal in each level, there is little redundancy. The designs are well done, and many different strategies can be adopted to defeat each one.
Apart from the single player experience, there are a few other good modes of play that are offered. Up to 4 players can go at it simultaneously in a death-match style mode of play. There is also a Golf Mode (strange, but fun) that can be unlocked if you defeat the entire Single Player mode. The icing on the cake, though, is the level editor. You can take almost any level that is included in the game and alter the items and blocks to your heart's content. This bumps up the replay value greatly, which wasn't too low to begin with.