I think that the tiki mask dudes are a secret race on the island, who are the "strange faces" sometimes seen in island events. I think that they were the parents in VV2, and they have built all of the villages. I also think that Biggles is a Tiki dude without the mask,and all of the villagers that come to the island are Tiki tribe castoffs/ sacrifices. I think that they will be important to the gameplay as either the heroes or the villans, but I hope that we can find out lots more and solve the mysteries of Isola!