Gumblians are actually peaceful aliens unless they are eaten by other aliens and humans. Their size is as small as chewing gums on Earth. If threatened, Gumblians are able to group and fuse together to become a giant alien. They moved to Earth because their home planet is suffering from extreme global cooling. They are also mercilessly chewed by other aliens in different galaxy in many generations. What the Gumblians want is to make aliens think that they are not candies that must be eaten. They become weak and turn into bubble gums when they're in frozen areas.