Passnegers become unlocked and on board the Starship Mario as you progress through the game completing the corresponding tasks.
Unlock The Star Bunny:
Beat the level 'Think Before you Shake' On the Flip Swap Galaxy. (World 1)
Beat the Level 'Tall Trunk's Purple Coin Slide' On the Tall Trunk Galaxy. (World 3)
Unlock Bob-Omb Buddy:
Bet the Level 'Return of the Whomp King' On the Throwback Galaxy. (World 6)
Unlock The Penguin (I don't know the name):
Beat The Level 'Exploring the Cosmic Cove' On the Cosic Cove Galaxy. (World 2)
Beat the Level 'Fluzzards Jungle Race' On the Wild Glide Galaxy. (World 2)
Beat the Level 'C'mere Goomba' On the Boulder Bowl Galaxy. (World 2)
Beat the Level 'C'mere Topman' on the Space Storm Galaxy. (World 5)
The Bee (Again I don't know the Actual Name):
Beat the Level 'The Sweetest Silver Stars' on the Honeyhop Galaxy. (World 4)
Beat the Level 'Saddle Up With Yoshi' On the Yoshi Star Galaxy. (World 1)
The Toad Brigade:
Beat the Level 'Search for the Toad Brigade Captain' On the Fluffy Bluff Galaxy. (World 1)
Salesman Luma (1 Chance Cube):
Get 24 Power Stars.
Salesman Luma (5 Chance Cubes):
Get 60 Power Stars.
Added by: Sanzano Jul 16th 2010, ID#3834