Advice....definately play friendly....go three rounds. Play with another strong player on the opposite team who can suck up the ghosts for you, and keep you from getting touched by the ghosts. And if you have another 2 players in the game, have them be the coffin shakers to produce more of the ghosts you need to win!
Remember sucking up an opposing team member (when they are a ghost) does NOT count towards the ghost total! GOOD LUCK! YOU CAN DO IT!