Mario, Luigi, and the two Toads' gameplay is the same as previous Super Mario Galaxy games, but assist Luma's is different. For Assist Luma, you need to shake the gamepad or press the ZR button to attack and collect coins and you need to move the joystick left and right to move.
Mario is walking through Toad Town and is buying power ups from the Toads with his red Assist Luma. But suddenly, the ground shakes and Mario looks up to see Bowser Jr. in a giant Clown Car. (Assist Luma was talking to his friends but then he looks up). Bowser Jr. uses the fist on the Clown Car to punch a hole in Peach's Castle and takes the princess, then he flies out into space. Mario's friends run up to him and say that they should go, Mario shakes his head yes and they head out with the Luma. Mario having a bag having Fire Flowers in it.
(More coming soon!)