Well, make use of Double Standing. Also, do NOT skip the battles. Lets say Klaus had one gate VS Chan who is at 2. Rub on Chan's bakugan, it will increase her Gs. If there's more than one gate in the field and someone is gonna double stand, make sure that you blow into the mic and make them jump over it, making sure to make them stand on the other card.Of course, these are tips for the DS version...