Lord Slug Character Facts

Part of the main title screen for the film showcases what appear to be cave drawings of a giant Namekian, evidently Lord Slug, as well as a creature with wings. It is unknown what race the smaller beings are, but they appear to be worshipping Slug. 
Lord Slug is a Namekian It is explained that he is one of the Super Nameks and, like the others, he was banished from Namek sometime around Age 261. Since then, he had gathered an army and became a conqueror of planets, using Terra-freeze and other methods to capture entire worlds.