Go to multiplayer and pick the storage level. Find the bunny closest to the stairs. Posses the bunny and then go up the stairs into the vent thats blue. Go in the vent and go up until you get to a ledge then get to the top. When you get to the top of the level you go on the rafters (pipes in the air). When your up there unposses the bunny and go through the wall where the light is. If you don't want to do that just simply use the bunny jump on the roof and go in the vent that is there. When you go through the vent or wall you will see a secret character that has a pistol and that will kill the opponents in one shot. Now open the door and let the opponents come to you and when they do SHOOT EM'...