Nintendo's just released further details on some of the new elements coming to Super Mario Galaxy.
Of particular note are the two new power-ups which allow Mario to utilise the power of cloud or rock to reach higher levels or batter opponents respectively.
The new co-op mode gets a mention too: "In the Co-Star mode, your friend will support you as a Luma who can not only hold enemies, but perform the famous Mario Spin move to immobilise and knock enemies out and can also interact with parts of galaxies."
Mario's spaceship has also been confirmed. He'll acquire the mode of transport - which has been made to look like him by Luma - after the first level.
As you navigate the galaxy, play and explore, Starship Mario gradually becomes populated with characters and features to enjoy.