Its really easy once you work it out. -We had everyone chilling behind the rocks just as you just into the court -you then need to shoot 1 of the eyes each then target the big orge as this makes you do heaps more damage -As soon as the 2 smaller orges spawn you should target them straight away (make sure you kill an eye before attacking them) - repeat until you are about to kill the big orge and as soon as you do everyone charges the platform and supers out the wizard ingnoring any of the other ogres if they spawn.