Back to his humble 2D roots after a gap of around fifteen years with the DS title New Super Mario Bros. Innovations this time include the Mega Mushroom, which makes Mario triple in size and walk through (almost) anything in his path, and the Mini Mushroom, which - as its name suggests! - shrinks Mario right down and gives him access to whole new areas...

Below are links to all the different worlds in the game. Each level description details the location of the Star Coins, secret items and all the secret exits. please go to keyman4.wetpaint.com This also has mario related stuff and even has Mario Starcatcher 2. This is a interesting website too!!