First do spacejunk galaxy and do the second level.When u see a blue floor in any ships go down.actually there are two.but go in both.the first one u go it will be full of starbits.An if u want to save some lives ,when ur battling inm the last ship go down the blue floor.And it will be better to have 2 players.like u can stop the witches fireballs mandibugs but not the big witch.