Super Mario Galaxy 2 - Wii

Skilled players will want to collect new Comet Metals, which will unlock harder levels with even more challenges

Mario collects stars as he travels from galaxy to galaxy, sometimes upside-down, sometimes floating from place to place.

On some stages, Mario can find an egg, smash it open and hop onto the back of Yoshi.

New power-ups include a drill that Mario uses to tunnel through the planet's surface all the way to the other side of a planet

Every level is new, but the game retains the charm, sense of wonder and beauty in line with Mario's history